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Can anyone explain this?



 
 
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  #1  
Old December 4th 17, 02:46 AM posted to microsoft.public.windowsxp.general
No_Name
external usenet poster
 
Posts: 177
Default Can anyone explain this?

Awhile back I posted about a hard drive partition which went whacky on
me. I spent days if not weeks trying to repair the Fat Tables. I finally
gave up. Ever since, I have been trying to save files from the drive,
little by little and making a list of those that can not be saved to see
if I can re-download them. Many of these files came from the internet,
sdome from friends, others came from outside sources and a few will
never be replaced.

The majority of the files are .PDF. But there are saved webpages, and
pictures as well, plus a few videos.

This drive was Fat32 and installed in Win98se. I tried numerous ways to
create an image of it, using XP and image software, but XP refused to
recognise the drive, whether I plugged it into an IDE cable or a
convertes taht allows it to be plugged into a USB port.

I finally gave up on using XP on this drive.
Using a USB bootable version of Linux, I was able to not only view all
the contents on the drive, but save all of it to another drive. However,
what I got were many PDF files that will not load, because they are
corrupt. Photos which do load, but are missing part of the picture (some
of those I have saved with an image editor). And some saved webpages
that lack some of their pictures and/or .JS or .CSS files. (the JS and
CSS files I just deleted, because I can usually still load the pages
offline.

Anyhow, I began by deleting all the files and folders from the drive,
which I had on an older backup. That left me with about 2.5gb of unsaved
data. File by file, or folder by folder I have moved any salvagable data
to another drive. This has left me with around 120 PDF files to replace,
and maybe 30 pictures which are important enough to replace. The videos
were all from youtube, so I just wrote down the names and will
re-download them.

Little by little, I am getting back as much of this data as I can. It's
very time consuming.

What I would like someone to explain, is why I can click on those PDF
files on the original drive, and they open fully, and do not lack parts.
Yet, they can not be copied to another drive. I even tried to load them
in a PDF viewer, and use the "SAVE AS" feature to save them. That gives
me an error saying "source can not be read". That puzzles me. If the
source can not be read, why can I view the whole thing?

Note, I am doing this in Win98. The same files that can not be saved
using 98, are the same ones that Linux saved and will not open
(corrupt).

Can anyone explain this?

Is there any sort of PDF repair tool made?

One final thing, there were also a few .ZIP files that were not
copyable. One in particular contained nothing but about 25 pictures. I
opened it with Winzip, and tried to extract them. I kept getting error
messages but Winzip was able to extract 21 of the 25 images.

Thank God I am almost done with this drive, there are about 150 files
that could not be saved, and I have marked them as BAD. Now I have to
write down every file name and it's folder location so I can hopefully
replace them. Once that's done, I'll be glad to toss this HDD in the
trash and never see it again....

From now on, I will backup much more often....

Ads
  #2  
Old December 4th 17, 11:54 AM posted to microsoft.public.windowsxp.general
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Can anyone explain this?

wrote:


What I would like someone to explain, is why I can click on those PDF
files on the original drive, and they open fully, and do not lack parts.
Yet, they can not be copied to another drive. I even tried to load them
in a PDF viewer, and use the "SAVE AS" feature to save them. That gives
me an error saying "source can not be read". That puzzles me. If the
source can not be read, why can I view the whole thing?

Can anyone explain this?

Is there any sort of PDF repair tool made?


I can only provide a partial explanation.

One of the improvements in PDF, over PostScript,
is each displayed page is supposed to be independent
of the previous page. I could in theory, have
a PDF reader open, and show me Page 1. I would have
to click the down button, and try *all* the pages
one by one, until the tool blows a fuse when it
hits a missing part.

What should happen though, is some operations in the
PDF viewer, should cause the file to be read from
one end to another. And then the problem would be
discovered. Try doing a "word search" on one of these
PDF files that opened for you, and see if the tool
freezes up or something. Given the opportunity, your
luck will not hold out.

*******

As for repairing a PDF, forget it. Where is the
redundant information stored ? There isn't any.
It's not like a ZIP file, where a single bit got
flipped. You've got clusters missing from the file.
You cannot make those out of thin air. and the pages
themselves, do not have unique identifiers or CRC to
protect them. Nobody considered this to be a requirement
when the format was invented.

*******

You can apply a technique like PAR blocks, to
reinforce a "weak" kind of media. If you add excess
information blocks, PAR allows synthesizing the missing
data blocks. This technique is used by movie pirates
on USENET, such that if some messages which constitute
a part of a movie go missing, the still fetchable
PAR blocks allow regenerating the missing bits. This
technique has also been used on CDs, to make them a bit
more scratch tolerant (a file with a scratch though it,
being replaced by a PAR block calculation).

https://en.wikipedia.org/wiki/Parchive

Obviously, you need to plan for and implement PAR blocks
properly in a given situation, to take advantage of them.
It's kinda like the idea of backups - sure, you can promise
today to start making backups, but the idea of backups
doesn't "magically" make the missing files come back
from the era where you weren't doing backups.

Paul
  #3  
Old December 4th 17, 02:57 PM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message , Paul
writes:
wrote:

What I would like someone to explain, is why I can click on those
PDF
files on the original drive, and they open fully, and do not lack parts.
Yet, they can not be copied to another drive. I even tried to load them
in a PDF viewer, and use the "SAVE AS" feature to save them. That gives
me an error saying "source can not be read". That puzzles me. If the
source can not be read, why can I view the whole thing?
Can anyone explain this?
Is there any sort of PDF repair tool made?


I can only provide a partial explanation.


It's good though (-:

One of the improvements in PDF, over PostScript,
is each displayed page is supposed to be independent
of the previous page. I could in theory, have
a PDF reader open, and show me Page 1. I would have
to click the down button, and try *all* the pages
one by one, until the tool blows a fuse when it
hits a missing part.


James did say he can "view the whole thing", but I suspect you are right
- he probably means he can _load_ the file without his reader reporting
errors, but hasn't actually stepped through all the pages.

Can you suggest any .PDF reader that allows individual page saving? (Or,
ideally, range-of-pages saving?) If the pages are supposed to be
independent, this ought to be possible, though I could easily believe
that no reader offers it.

If he could do that, then he could use one of several PDF-stitching
utilities to reassemble the pages that _do_ display. That way he could
at least reassemble a file that loads (and views) without errors, though
with some pages missing.

What should happen though, is some operations in the
PDF viewer, should cause the file to be read from
one end to another. And then the problem would be
discovered. Try doing a "word search" on one of these
PDF files that opened for you, and see if the tool
freezes up or something. Given the opportunity, your
luck will not hold out.


I have had PDFs where I can "go to" pages after the ones that won't
display, which supports your statement that the pages are independent.
(Is a .PDF a "linked list" of pages, or is there an "index" [not the one
that might or might not be in the pages displayed] at the front?)

*******

As for repairing a PDF, forget it. Where is the
redundant information stored ? There isn't any.

[]
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Practicall every British actor with a bus pass is in there ...
Barry Norman (on "The Best Exotic Marigold Hotel" [2011]), RT 2015/12/12-18
  #4  
Old December 4th 17, 03:24 PM posted to microsoft.public.windowsxp.general
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Can anyone explain this?

J. P. Gilliver (John) wrote:


I have had PDFs where I can "go to" pages after the ones that won't
display, which supports your statement that the pages are independent.
(Is a .PDF a "linked list" of pages, or is there an "index" [not the one
that might or might not be in the pages displayed] at the front?)


When the document contains hyperlinks, I think they're stored
at the end of the document, and emitted by the thing preparing
the PDF, after the pages themselves have been processed.

The text letters for the Index are stored on the page where
the Index appears visually. But I've seen some number strings
down at the end, which probably say which page to jump to.

I sometimes end up looking down there, after receiving a
suspected document with malevolent Javascript. As I think
the Javascript can be down there. But a web article claims
there are no guarantees with the Javascript, as other
"encoded" lines in the file, can execute and generate
Javascript which can run. As long as Javascript is disabled
in the Preferences, that provides a measure of safety.

And when do I look in PDF files in that much detail ?
When I visit a web site and the "Save As" dialog appears
on the screen, before I've had a chance to do anything.
As that's a sign some script kiddie is trying their
hand at it. Any time a web site is in an awful hurry
to give you a PDF file, that's not a good sign. They're
trying to get the in-browser plugin to run, on a tool
that still has Javascript-in-PDF enabled.

Paul
  #5  
Old December 4th 17, 05:05 PM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message , Paul
writes:
J. P. Gilliver (John) wrote:

I have had PDFs where I can "go to" pages after the ones that won't
display, which supports your statement that the pages are independent.
(Is a .PDF a "linked list" of pages, or is there an "index" [not the
one that might or might not be in the pages displayed] at the front?)


When the document contains hyperlinks, I think they're stored
at the end of the document, and emitted by the thing preparing
the PDF, after the pages themselves have been processed.

The text letters for the Index are stored on the page where
the Index appears visually. But I've seen some number strings
down at the end, which probably say which page to jump to.

[]
I didn't mean any Index provided for humans to read - I was asking about
the structure of a .PDF (I could go and look it up, but it sounds like
you know the answer). So if I load a .pdf, and then tell my reader to go
to page 10, how does it know where in the file to go to: is there a
non-human-readable index near the beginning of the file to where all the
pages are, or does it have to work its way through the file to get
there? I was thinking about a corrupted block in the middle of the file:
I've had ones where some pages wouldn't display, but where I've been
able to go to _after_ the corruption and still view pages OK, and I was
wondering how this was possible. (Though I think in my cases these have
mostly been .pdf files whose structure is too complicated for their own
good, rather than ones that have actually been corrupted, e. g. by a
dodgy disc drive.)
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

"Bother," said Pooh, as Windows crashed into piglet.
  #6  
Old December 4th 17, 09:55 PM posted to microsoft.public.windowsxp.general
No_Name
external usenet poster
 
Posts: 177
Default Can anyone explain this?

On Mon, 4 Dec 2017 14:57:57 +0000, "J. P. Gilliver (John)"
wrote:

James did say he can "view the whole thing", but I suspect you are right
- he probably means he can _load_ the file without his reader reporting
errors, but hasn't actually stepped through all the pages.

Can you suggest any .PDF reader that allows individual page saving? (Or,
ideally, range-of-pages saving?) If the pages are supposed to be
independent, this ought to be possible, though I could easily believe
that no reader offers it.

If he could do that, then he could use one of several PDF-stitching
utilities to reassemble the pages that _do_ display. That way he could
at least reassemble a file that loads (and views) without errors, though
with some pages missing.


Some very large PDF files get real slow when I go page to page (on a
normal file and HDD).

On some of these PDF files on the defective HDD, I have stepped thru
them, and it appears they were intact. Others I just opened looked at
the first page and then went to the last page.

At this point, I am giving up on any files I could not copy from that
bad drive. I have already downloaded about 1/3 of the PDF files that
came from the web. I'm finding that what I lost was mostly from the web.
I emailed a friend to get back some stuff I got from him, and in the
end, I really dont think I will lose too much that cant be replaced.

A few JPG images that were important, I opened from the bad drive. They
do open, but part of them are grayed (missing). If they are still
usable, I take PSP (Paint Shop Pro), do a screen capture, and import the
pic into PSP. Then I SAVE AS and save it to a good drive. That works
pretty well, but only if the file is complete enough to salvage. These
pics are mostly electrical or mechanical drawings. If they are just some
"cute" thing I sabed from the web, I can live without them.

There are still a few ZIP files I need to attempt to deal with too. I'm
now down to about 550mb of stuff left to retrieve or repair. As soon as
I re-download something, I delete the bad files from that drive. So the
drive is now showing about 550mb remaining. That's workable. In fact
it's taking less time to replace files than all the many hours I spent
trying to repair that HDD. However, I did make the drive readable again,
using Norton Disk Doctor (from the early 2000's), which was made for
Win98, WinME, and Win2000. Of course this drive is running Win98, so
that all works out. That Norton DD really struggled to get thru this
drive, I had to run it 3 times. The first time I locked up.

It was showing 20 or more black blocks, meaning corrupt data blocks. So
that drive is really bad. Oddly enough, that drive has 3 partitions, G:
H: and I:. The trouble is on the first partition (G), the other two work
fine. In fact I was saving the salvagable files to I:, since I cant use
any large flash drives on Win98. After I saved a bunch of files, I
booted to Win2000, and moved those files to a flash drive.

At first this seemed to be an impossible task, but I finally figured out
a system and now it's just a matter of time.... and lots of downloading.
There will be a few losses, but in the end, I wont lose too much.
I'm rebuilding that whole partition on an external HDD, and
re-organizing it in the process. That HDD is connected to my XP machine.
I began all of that by starting with my most recent backup, and filling
in the missing stuff.

Either way, I will be backing up much more often from now on. This was a
hard lesson to learn.....



  #7  
Old December 4th 17, 10:25 PM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message ,
writes:
[]
Some very large PDF files get real slow when I go page to page (on a
normal file and HDD).

On some of these PDF files on the defective HDD, I have stepped thru
them, and it appears they were intact.

But those ones are broken if copied? Odd.
Others I just opened looked at
the first page and then went to the last page.

At this point, I am giving up on any files I could not copy from that
bad drive. I have already downloaded about 1/3 of the PDF files that
came from the web. I'm finding that what I lost was mostly from the web.
I emailed a friend to get back some stuff I got from him, and in the
end, I really dont think I will lose too much that cant be replaced.

A few JPG images that were important, I opened from the bad drive. They


What are you opening them in?

do open, but part of them are grayed (missing). If they are still
usable, I take PSP (Paint Shop Pro), do a screen capture, and import the
pic into PSP. Then I SAVE AS and save it to a good drive. That works
pretty well, but only if the file is complete enough to salvage. These
pics are mostly electrical or mechanical drawings. If they are just some
"cute" thing I sabed from the web, I can live without them.


IrfanView (which will work on '98, though I'm not sure about the latest
version) will open damaged JPGs and let you save them (with the grey
part), without needing to do a screen capture. (Might avoid you losing
resolution for big images, which might be important if they're
fine-detail diagrammes.)

There are still a few ZIP files I need to attempt to deal with too. I'm
now down to about 550mb of stuff left to retrieve or repair. As soon as


Any idea how many files that is?

I re-download something, I delete the bad files from that drive. So the


(Do you delete now-empty folders, too?)

drive is now showing about 550mb remaining. That's workable. In fact
it's taking less time to replace files than all the many hours I spent
trying to repair that HDD. However, I did make the drive readable again,
using Norton Disk Doctor (from the early 2000's), which was made for
Win98, WinME, and Win2000. Of course this drive is running Win98, so
that all works out. That Norton DD really struggled to get thru this
drive, I had to run it 3 times. The first time I locked up.

It was showing 20 or more black blocks, meaning corrupt data blocks. So


(If you run it again, is the number of "black blocks" going up?)

that drive is really bad. Oddly enough, that drive has 3 partitions, G:
H: and I:. The trouble is on the first partition (G), the other two work
fine. In fact I was saving the salvagable files to I:, since I cant use


Does sound as if it's a genuinely bad area of surface.

any large flash drives on Win98. After I saved a bunch of files, I
booted to Win2000, and moved those files to a flash drive.

At first this seemed to be an impossible task, but I finally figured out
a system and now it's just a matter of time.... and lots of downloading.
There will be a few losses, but in the end, I wont lose too much.
I'm rebuilding that whole partition on an external HDD, and
re-organizing it in the process. That HDD is connected to my XP machine.
I began all of that by starting with my most recent backup, and filling
in the missing stuff.

Either way, I will be backing up much more often from now on. This was a
hard lesson to learn.....

(-:


--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

All that glitters has a high refractive index.
  #8  
Old December 4th 17, 10:38 PM posted to microsoft.public.windowsxp.general
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Can anyone explain this?

J. P. Gilliver (John) wrote:
In message , Paul
writes:
J. P. Gilliver (John) wrote:

I have had PDFs where I can "go to" pages after the ones that won't
display, which supports your statement that the pages are
independent. (Is a .PDF a "linked list" of pages, or is there an
"index" [not the one that might or might not be in the pages
displayed] at the front?)


When the document contains hyperlinks, I think they're stored
at the end of the document, and emitted by the thing preparing
the PDF, after the pages themselves have been processed.

The text letters for the Index are stored on the page where
the Index appears visually. But I've seen some number strings
down at the end, which probably say which page to jump to.

[]
I didn't mean any Index provided for humans to read - I was asking about
the structure of a .PDF (I could go and look it up, but it sounds like
you know the answer). So if I load a .pdf, and then tell my reader to go
to page 10, how does it know where in the file to go to: is there a
non-human-readable index near the beginning of the file to where all the
pages are, or does it have to work its way through the file to get
there? I was thinking about a corrupted block in the middle of the file:
I've had ones where some pages wouldn't display, but where I've been
able to go to _after_ the corruption and still view pages OK, and I was
wondering how this was possible. (Though I think in my cases these have
mostly been .pdf files whose structure is too complicated for their own
good, rather than ones that have actually been corrupted, e. g. by a
dodgy disc drive.)


It's got some numbering scheme, and it uses some
sort of "balanced tree" data structure, whatever
that means. This is from a copy of "PDF Reference 1.6" (1236 pages).
Which is, of course, a PDF document.

1 0 obj % Document catalog
/Type /Catalog
/Pages 100 0 R % Page tree
/StructTreeRoot 300 0 R % Structure tree root

endobj

100 0 obj % Page tree
/Type /Pages
/Kids [ 101 1 R % First page object
102 0 R % Second page object
]
/Count 2 % Page count

endobj

101 1 obj % First page object
/Type /Page
...

102 0 obj % Second page object
/Type /Page

So there are identifiers, and like XML, the syntax delimits
objects in the file. If a chunk went missing though, I don't
immediately see how you could jump to much of a conclusion.
The page tree appears to be declaring the pagelist, so I suppose
you know that object 102 comes after object 101. But what
if the page tree was the missing file system sector ? I guess
the "/Type /Page" thing says it is the beginning of a page.

Obviously, I find PDF baffling and I just don't get it.
It's more of a computer science lecture than a language.

*******

Both the PLRM spec and the PDF Reference, are available
on the Adobe site for download. When the PLRM first came
out, these were printed as books, and I actually bought
the PLRM so I could have a copy. Now, they're just a download.
The PLRM is thick enough, you have to be careful when
holding the book, to protect the spine.

I used to "repair" print jobs at work. Someone would bring
a print job to me and say "this damn thing won't print past
page 16". And I would crack open the PLRM, spot a missing
"pop" from a recurring data structure, fix'em up and send it
off to the printer, so the whole thing would print. The
printers didn't have a lot of memory back then, and
careless PostScript constructs could actually bomb
before the print job was finished.

With PDF, there wasn't a need any more for that sort
of thing. And in a way, that's good, because I don't
get PDF anyway.

Paul
  #9  
Old December 4th 17, 10:55 PM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message , Paul
writes:
J. P. Gilliver (John) wrote:

[]
I didn't mean any Index provided for humans to read - I was asking
about the structure of a .PDF (I could go and look it up, but it
sounds like you know the answer). So if I load a .pdf, and then tell
my reader to go to page 10, how does it know where in the file to go
to: is there a non-human-readable index near the beginning of the
file to where all the pages are, or does it have to work its way
through the file to get there? I was thinking about a corrupted block

[]
It's got some numbering scheme, and it uses some
sort of "balanced tree" data structure, whatever
that means. This is from a copy of "PDF Reference 1.6" (1236 pages).
Which is, of course, a PDF document.

1 0 obj % Document catalog
/Type /Catalog
/Pages 100 0 R % Page tree
/StructTreeRoot 300 0 R % Structure tree root

endobj

100 0 obj % Page tree
/Type /Pages
/Kids [ 101 1 R % First page object
102 0 R % Second page object
]
/Count 2 % Page count

endobj

101 1 obj % First page object
/Type /Page
...

102 0 obj % Second page object
/Type /Page

So there are identifiers, and like XML, the syntax delimits
objects in the file. If a chunk went missing though, I don't
immediately see how you could jump to much of a conclusion.

[]
So if you tell it to go to page 100, there's nothing near the beginning
of the file that tells it that page 100 starts at file offset #123ABC,
and it has to hunt through the file looking for the start of page 100's
code (or, worse, has to find 100 page-start markers). No wonder PDF
parsers are so slow!

Yes, I agree, it's a baffling language - "more of a computer science
lecture than a language" is about right. It seems needlessly complex. (I
don't know how much of that is PDF and how much the embedded PostScript.
Quite a lot is the latter, I think.)
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

If you carry on hating, you're the one who's damaged.
- Sir Harold Atcherley, sent to the Burma/Siam railway in April 1943
  #10  
Old December 5th 17, 01:06 AM posted to microsoft.public.windowsxp.general
No_Name
external usenet poster
 
Posts: 177
Default Can anyone explain this?

On Mon, 4 Dec 2017 22:25:09 +0000, "J. P. Gilliver (John)"
wrote:

In message ,
writes:
[]
Some very large PDF files get real slow when I go page to page (on a
normal file and HDD).

On some of these PDF files on the defective HDD, I have stepped thru
them, and it appears they were intact.

But those ones are broken if copied? Odd.
Others I just opened looked at
the first page and then went to the last page.

At this point, I am giving up on any files I could not copy from that
bad drive. I have already downloaded about 1/3 of the PDF files that
came from the web. I'm finding that what I lost was mostly from the web.
I emailed a friend to get back some stuff I got from him, and in the
end, I really dont think I will lose too much that cant be replaced.

A few JPG images that were important, I opened from the bad drive. They


What are you opening them in?

PDF Exchange Viewer (the best one ever made) Older version for Win98 of
course.

do open, but part of them are grayed (missing). If they are still
usable, I take PSP (Paint Shop Pro), do a screen capture, and import the
pic into PSP. Then I SAVE AS and save it to a good drive. That works
pretty well, but only if the file is complete enough to salvage. These
pics are mostly electrical or mechanical drawings. If they are just some
"cute" thing I sabed from the web, I can live without them.


IrfanView (which will work on '98, though I'm not sure about the latest
version) will open damaged JPGs and let you save them (with the grey
part), without needing to do a screen capture. (Might avoid you losing
resolution for big images, which might be important if they're
fine-detail diagrammes.)


I may try that....

One weird one was a christmas card someone emailed to me which I saved.
Just a small JPG image. It completely loads the whole picture, but could
not be saved. I did a capture on that one and resaved it.


There are still a few ZIP files I need to attempt to deal with too. I'm
now down to about 550mb of stuff left to retrieve or repair. As soon as


Any idea how many files that is?


Most small files could be saved. What was lost were files over 1 or 2
megs and the bigger they are, the more likely they could not be saved.
Oddly enough a bunch of 4kb gif files also died in a saved webpage. They
were just junk files anyhow, so I just deleted them.

I am now down to about 70 files to download. Most are PDF. 550mb sounds
like a lot of files, but many PDFs are 5mb up to 90mb, so those add up
fast. I'm downloading a lot of the small ones on my dialup, but anything
big I have to go to a WIFI. I just keep adding more file names to a text
file. I'm finding that by googling the exact file name with extension,
most come right up. There are a few that I am not finding though. I
expect to lose at least 10 of them for good. I also lost some stuff that
I scanned on a scanner and I will have to rescan them.


I re-download something, I delete the bad files from that drive. So the


(Do you delete now-empty folders, too?)


Yep, but there is one that will not allow me to delete the folder or the
file in it. And all it is, is a small JPG.

drive is now showing about 550mb remaining. That's workable. In fact
it's taking less time to replace files than all the many hours I spent
trying to repair that HDD. However, I did make the drive readable again,
using Norton Disk Doctor (from the early 2000's), which was made for
Win98, WinME, and Win2000. Of course this drive is running Win98, so
that all works out. That Norton DD really struggled to get thru this
drive, I had to run it 3 times. The first time I locked up.

It was showing 20 or more black blocks, meaning corrupt data blocks. So


(If you run it again, is the number of "black blocks" going up?)


I'm not touching it till I finish retreiving the file names of the bad
files. I'm actually wondering what will happen if I just reformat that
partition???? Regardless, that drive will not be used again.... I picked
up a new 120gb drive for about $20, so it's not worth using crap.


that drive is really bad. Oddly enough, that drive has 3 partitions, G:
H: and I:. The trouble is on the first partition (G), the other two work
fine. In fact I was saving the salvagable files to I:, since I cant use


Does sound as if it's a genuinely bad area of surface.


Whats weird is that this G: partition was storage and never used all
that much. The H: partition was used to download stuff, and was used and
modified and changed all the time, and that one is fine.... Drive I: is
also fine. (All on the same physical HDD).


any large flash drives on Win98. After I saved a bunch of files, I
booted to Win2000, and moved those files to a flash drive.

At first this seemed to be an impossible task, but I finally figured out
a system and now it's just a matter of time.... and lots of downloading.
There will be a few losses, but in the end, I wont lose too much.
I'm rebuilding that whole partition on an external HDD, and
re-organizing it in the process. That HDD is connected to my XP machine.
I began all of that by starting with my most recent backup, and filling
in the missing stuff.

Either way, I will be backing up much more often from now on. This was a
hard lesson to learn.....

(-:



  #11  
Old December 5th 17, 08:32 AM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message ,
writes:
[]
A few JPG images that were important, I opened from the bad drive. They


What are you opening them in?

PDF Exchange Viewer (the best one ever made) Older version for Win98 of
course.


No, I meant what are you open the _JPG_ files with?
[]
IrfanView (which will work on '98, though I'm not sure about the latest
version) will open damaged JPGs and let you save them (with the grey
part), without needing to do a screen capture. (Might avoid you losing
resolution for big images, which might be important if they're
fine-detail diagrammes.)


I may try that....

One weird one was a christmas card someone emailed to me which I saved.
Just a small JPG image. It completely loads the whole picture, but could
not be saved. I did a capture on that one and resaved it.

Christmas cards often have anti-copy - though that shouldn't be the case
if it's just a .JPG _file_.
[]
now down to about 550mb of stuff left to retrieve or repair. As soon as


Any idea how many files that is?

[]
I am now down to about 70 files to download. Most are PDF. 550mb sounds
like a lot of files, but many PDFs are 5mb up to 90mb, so those add up
fast. I'm downloading a lot of the small ones on my dialup, but anything
big I have to go to a WIFI. I just keep adding more file names to a text
file. I'm finding that by googling the exact file name with extension,
most come right up. There are a few that I am not finding though. I


Yes, I've found the same. The wayback machine may also be worth a look,
though I think you can only give it URLs, not filenames. (But if
googling the filename gives links that don't work, they may be worth
trying on Wayback, if the "don't work" is just "can't find".)

expect to lose at least 10 of them for good. I also lost some stuff that


When the number gets that low, you could list them (probably better with
description) here; you never know! Keep us informed, anyway - since
we've shared your anguish as you proceed, it'd be nice to follow you to
the bitter end.

I scanned on a scanner and I will have to rescan them.

That should be trivial, unless you're talking of a huge piece of paper.

I re-download something, I delete the bad files from that drive. So the


(Do you delete now-empty folders, too?)


Yep, but there is one that will not allow me to delete the folder or the
file in it. And all it is, is a small JPG.


(IrfanView can also delete the current file, though I doubt that'd work
either.)
[]
(If you run it again, is the number of "black blocks" going up?)


I'm not touching it till I finish retreiving the file names of the bad
files. I'm actually wondering what will happen if I just reformat that

[]
At first this seemed to be an impossible task, but I finally figured out
a system and now it's just a matter of time.... and lots of downloading.

[]
Either way, I will be backing up much more often from now on. This was a
hard lesson to learn.....

(-:



--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Never make the same mistake twice...there are so many new ones to make!
  #12  
Old December 5th 17, 12:57 PM posted to microsoft.public.windowsxp.general
No_Name
external usenet poster
 
Posts: 177
Default Can anyone explain this?

On Tue, 5 Dec 2017 08:32:37 +0000, "J. P. Gilliver (John)"
wrote:

In message ,
writes:
[]
A few JPG images that were important, I opened from the bad drive. They

What are you opening them in?

PDF Exchange Viewer (the best one ever made) Older version for Win98 of
course.


No, I meant what are you open the _JPG_ files with?


I always liked ACDSee the best....

[]
IrfanView (which will work on '98, though I'm not sure about the latest
version) will open damaged JPGs and let you save them (with the grey
part), without needing to do a screen capture. (Might avoid you losing
resolution for big images, which might be important if they're
fine-detail diagrammes.)


I may try that....

One weird one was a christmas card someone emailed to me which I saved.
Just a small JPG image. It completely loads the whole picture, but could
not be saved. I did a capture on that one and resaved it.

Christmas cards often have anti-copy - though that shouldn't be the case
if it's just a .JPG _file_.


This was homemade of someone's pet.
[]
now down to about 550mb of stuff left to retrieve or repair. As soon as

Any idea how many files that is?


Like i said, around 70 or 80.
However I went to the local WIFI this evening and got about half of
them. Several were old electronics magazines from like 1920 to 1990, and
not only did I download all those I lost, but added about 80 more to my
collection. I had a super fast connection so I just kept clicking on
them.

I would have downloaded more of the missing files but I only put half my
list in text form before I left home.

[]
I am now down to about 70 files to download. Most are PDF. 550mb sounds
like a lot of files, but many PDFs are 5mb up to 90mb, so those add up
fast. I'm downloading a lot of the small ones on my dialup, but anything
big I have to go to a WIFI. I just keep adding more file names to a text
file. I'm finding that by googling the exact file name with extension,
most come right up. There are a few that I am not finding though. I


Yes, I've found the same. The wayback machine may also be worth a look,
though I think you can only give it URLs, not filenames. (But if
googling the filename gives links that don't work, they may be worth
trying on Wayback, if the "don't work" is just "can't find".)



expect to lose at least 10 of them for good. I also lost some stuff that


When the number gets that low, you could list them (probably better with
description) here; you never know! Keep us informed, anyway - since
we've shared your anguish as you proceed, it'd be nice to follow you to
the bitter end.


Well, a few are my own graphic images that I created. Those are gone
forvever. One was given to me by a veternarian and is not something in
the public domain. He's retired so I doubt I can replace that. A few
other things I will have to try to get from the persons who I got them
files from, because they are not something you can just find online.


There is one file that you can watch for though. It's the 2011 National
Electrical Code book. That is a copyrighted book, but a new one is made
every year and due to its age, it was put on the web, in a sort of
secret manner. I somewhat recall seeing the URL on a newsgroup. Maybe a
year ago. That has come in handy several times for just looking up stuff
when I wire my own buildings. I can not find it now.

Filename: National Electrical Code 2011.pdf
Size is 10,884kb

I scanned on a scanner and I will have to rescan them.

That should be trivial, unless you're talking of a huge piece of paper.


Just common scans, no big deal to redo them....

I re-download something, I delete the bad files from that drive. So the

(Do you delete now-empty folders, too?)


Yep, but there is one that will not allow me to delete the folder or the
file in it. And all it is, is a small JPG.


(IrfanView can also delete the current file, though I doubt that'd work
either.)
[]


I wonder if that program has a Win98 version. Remember this drive is on
a Win98 computer. Like I said, I plugged it into my XP desktop and XP
cant read that drive. It just tells me to format it. But Win98 does read
it, and I could also read it using a bootable USB Linux stick.
(Windows 2000 wont read it either).

(If you run it again, is the number of "black blocks" going up?)


I'm not touching it till I finish retreiving the file names of the bad
files. I'm actually wondering what will happen if I just reformat that

[]
At first this seemed to be an impossible task, but I finally figured out
a system and now it's just a matter of time.... and lots of downloading.

[]
Either way, I will be backing up much more often from now on. This was a
hard lesson to learn.....

(-:


When this is completed, I have the urge to take that drive out in the
woods and use it for target practice with my rifle LOL

I wouldn't be the first guy to do that. There are a few youtube videos
where some guy unloads some powerful guns into a stack of 20 or so
harddrives and the bullet penetrates as many drives as 7 or 8 drives. He
works for some company that is supposed to destroy hard drives to remove
all data from them. This is how he does it. Pretty goofy is you ask
me... Not to mention a big waste of Hard drives that supposedly still
worked.



  #13  
Old December 5th 17, 09:19 PM posted to microsoft.public.windowsxp.general
J. P. Gilliver (John)[_4_]
external usenet poster
 
Posts: 2,679
Default Can anyone explain this?

In message ,
writes:
[]
(Do you delete now-empty folders, too?)

Yep, but there is one that will not allow me to delete the folder or the
file in it. And all it is, is a small JPG.


(IrfanView can also delete the current file, though I doubt that'd work
either.)
[]


I wonder if that program has a Win98 version. Remember this drive is on


I've just looked, and the website (current version 4.50) currently
mentions XP to 10. However, yes, it certainly worked under '98 - the one
I have on my '98 machine is 4.36, and (as you _might_ expect from the
number) I can't honestly say I notice much difference from the current
version, certainly for what I do with it on the '98 machine.
[]
When this is completed, I have the urge to take that drive out in the
woods and use it for target practice with my rifle LOL

I wouldn't be the first guy to do that. There are a few youtube videos
where some guy unloads some powerful guns into a stack of 20 or so
harddrives and the bullet penetrates as many drives as 7 or 8 drives. He
works for some company that is supposed to destroy hard drives to remove
all data from them. This is how he does it. Pretty goofy is you ask
me... Not to mention a big waste of Hard drives that supposedly still
worked.

I share the part of your mind that that last sentence implies. I hate
violent destruction of manufactured items.


--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

The early worm gets the bird.
  #14  
Old December 6th 17, 01:33 AM posted to microsoft.public.windowsxp.general
No_Name
external usenet poster
 
Posts: 177
Default Can anyone explain this?

On Tue, 5 Dec 2017 21:19:17 +0000, "J. P. Gilliver (John)"
wrote:

In message ,
writes:
[]
(Do you delete now-empty folders, too?)

Yep, but there is one that will not allow me to delete the folder or the
file in it. And all it is, is a small JPG.

(IrfanView can also delete the current file, though I doubt that'd work
either.)
[]


I wonder if that program has a Win98 version. Remember this drive is on


I've just looked, and the website (current version 4.50) currently
mentions XP to 10. However, yes, it certainly worked under '98 - the one
I have on my '98 machine is 4.36, and (as you _might_ expect from the
number) I can't honestly say I notice much difference from the current
version, certainly for what I do with it on the '98 machine.


I'll have to look on oldapps.com or a similar site. I think most
softrware reaches a peak, where it can no longer be improved, so they
add bloat so they can sell more..... Then the bloat renders it useless
or at least slow. I have used PSP (Paint shop pro) since the mid 90s. It
was originally shareware, and it worked great. It got more and more
bloated, making it hard to learn and to use. Then it became a commercial
pay program, trying to compete with Photoshop. I still use the older
versions of it, which are easy and simple.

Then again, isn't Windows 10 just a bloated version of Win8? And Win8
never won any prizes. I have never used Win7, but I'd try it. You could
not give me Win8 or 10.

Win98 does almost everything I need. Poor USB support is one downfall
though. XP does everything. Why should I even want anything newer? And
why should I toss a perfectly working computer and dish out hundreds of
dollars to buy a newer machine to run any bloated versions of Windows.
which wont offer me anything useful.

[]
When this is completed, I have the urge to take that drive out in the
woods and use it for target practice with my rifle LOL

I wouldn't be the first guy to do that. There are a few youtube videos
where some guy unloads some powerful guns into a stack of 20 or so
harddrives and the bullet penetrates as many drives as 7 or 8 drives. He
works for some company that is supposed to destroy hard drives to remove
all data from them. This is how he does it. Pretty goofy is you ask
me... Not to mention a big waste of Hard drives that supposedly still
worked.

I share the part of your mind that that last sentence implies. I hate
violent destruction of manufactured items.

We used to have a nearby computer recycling company. They dismantled old
computers and sold cards, drives, memory, monitors, old software,
keyboards,mice and more. A lot of the parts of the computer I am using
right now, came from there. I know I got the power supply from them,
which had 3 times the wattage of the original PS, which was not
adaquate. And I still have a box of HDDs from them that are small for
today, but still work. They were a small company, but they paid the rent
and had jobs for a dozen or so employees, plus provided a service for
computer users wanting to build their own or upgrade the hardware.

One day the state came along and put them out of business. The state
took over the "recycling" by force. They began charging people $20 to
dispose of computers, another $20 for monitors, another $20 for
printers, an so on. Those computers are (from what I heard) shipped over
to foreign companies to dispose. No longer can we buy used parts, jobs
were lost, and that company lost everything. What a shame....

As far as I know, there are methods to wipe a hard drive so nothing can
ever be retrived, and they are non-destructive, meaning the HDD can be
reused.



 




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