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CD writer and DVD/CD rom can't be shared in workgroup



 
 
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  #61  
Old July 26th 04, 08:09 AM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.


Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.

Ads
  #62  
Old July 26th 04, 08:09 AM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.


Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.

  #63  
Old July 26th 04, 08:09 AM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.


Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.

  #64  
Old July 26th 04, 10:26 PM
Mike Matheny
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

Sorry, from my experience on a 100 mb LAN (and this is at NASA, so it's not
idle!). Have never had a coaster burning from the network at top speed.

Mike


"Nathan McNulty" wrote in message
...
It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.

Well, you're correct about not writing to the CD writer, but wrong about

not
being able to supply data fast enough through a network - even the

fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.



  #65  
Old July 26th 04, 10:49 PM
Ray
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup


Kelly,

I have run the program downloaded on the computer with CD writer and DVD
rom
drives but the result remains unchanged. Is there any other way to fix it?
Or please let me know where I should check and/or modify the registry.

Thanks,

Ray


"Kelly" wrote in message
...
Hi Ray,

The former.

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
Kelly,

Should I apply it to the pc with CD-ROM drive or the pc to access the
CD-ROM
drive. Thanks for your further advice.

Ray

"Kelly" wrote in message
...
Hi Ray,

Try the edit on line 264 (right hand side)
http://www.kellys-korner-xp.com/xp_tweaks.htm

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
I configured the CD writer and DVD/CD rom to be shared in workgroup

on
my
desktop running Windows XP Pro. All the users in workgroup can see

the
drives but not allow to access. I have given the write access to
everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray












  #66  
Old July 26th 04, 10:53 PM
David Vair
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

They need read access to be able to see drive contents, also check if firewall is on it may be
keeping them from seeing. I don't think they will be able to write to it over the network, I think
only the local computer can right to CD burner.

--
Dave Vair
CNE, CNA, MCP, A+, N+
Computer Education Services Corp. (CESC)

"Ray" wrote in message ...

Kelly,

I have run the program downloaded on the computer with CD writer and DVD
rom
drives but the result remains unchanged. Is there any other way to fix it?
Or please let me know where I should check and/or modify the registry.

Thanks,

Ray


"Kelly" wrote in message
...
Hi Ray,

The former.

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
Kelly,

Should I apply it to the pc with CD-ROM drive or the pc to access the
CD-ROM
drive. Thanks for your further advice.

Ray

"Kelly" wrote in message
...
Hi Ray,

Try the edit on line 264 (right hand side)
http://www.kellys-korner-xp.com/xp_tweaks.htm

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
I configured the CD writer and DVD/CD rom to be shared in workgroup

on
my
desktop running Windows XP Pro. All the users in workgroup can see

the
drives but not allow to access. I have given the write access to
everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray














  #67  
Old July 26th 04, 10:53 PM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

I agree that on a high traffic network such as that, the burning speeds
should be lowered considerably. It is possible to allocate a percentage
of the network to allow for a dedicated transfer of this data, but that
would reduce the amount of bandwidth available to the rest of the network.

I am still unsure as to whether or not Windows will natively supports
buring a CD over a network. I do know that such programs exist as I have
tested them out. Take a look at Nero NET:
http://www.nero.com/us/631934399251526.html

----
Nathan McNulty


Mike Matheny wrote:
Sorry, from my experience on a 100 mb LAN (and this is at NASA, so it's not
idle!). Have never had a coaster burning from the network at top speed.

Mike


"Nathan McNulty" wrote in message
...

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:

In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:


When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.

Well, you're correct about not writing to the CD writer, but wrong about


not

being able to supply data fast enough through a network - even the


fastest

IDE subsystem cannot perform as fast as even a 10mb network.


Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.




  #68  
Old July 26th 04, 10:54 PM
Steve Winograd [MVP]
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

In article , "Ray"
wrote:
I configured the CD writer and DVD/CD rom to be shared in workgroup on my
desktop running Windows XP Pro. All the users in workgroup can see the
drives but not allow to access. I have given the write access to everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray


When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
  #69  
Old July 26th 04, 11:47 PM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.


Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.

  #70  
Old July 27th 04, 12:21 AM
Mike Matheny
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

Sorry, from my experience on a 100 mb LAN (and this is at NASA, so it's not
idle!). Have never had a coaster burning from the network at top speed.

Mike


"Nathan McNulty" wrote in message
...
It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.

Well, you're correct about not writing to the CD writer, but wrong about

not
being able to supply data fast enough through a network - even the

fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.



  #71  
Old July 27th 04, 12:27 AM
Ray
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup


Kelly,

I have run the program downloaded on the computer with CD writer and DVD
rom
drives but the result remains unchanged. Is there any other way to fix it?
Or please let me know where I should check and/or modify the registry.

Thanks,

Ray


"Kelly" wrote in message
...
Hi Ray,

The former.

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
Kelly,

Should I apply it to the pc with CD-ROM drive or the pc to access the
CD-ROM
drive. Thanks for your further advice.

Ray

"Kelly" wrote in message
...
Hi Ray,

Try the edit on line 264 (right hand side)
http://www.kellys-korner-xp.com/xp_tweaks.htm

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
I configured the CD writer and DVD/CD rom to be shared in workgroup

on
my
desktop running Windows XP Pro. All the users in workgroup can see

the
drives but not allow to access. I have given the write access to
everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray












  #72  
Old July 27th 04, 12:33 AM
David Vair
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

They need read access to be able to see drive contents, also check if firewall is on it may be
keeping them from seeing. I don't think they will be able to write to it over the network, I think
only the local computer can right to CD burner.

--
Dave Vair
CNE, CNA, MCP, A+, N+
Computer Education Services Corp. (CESC)

"Ray" wrote in message ...

Kelly,

I have run the program downloaded on the computer with CD writer and DVD
rom
drives but the result remains unchanged. Is there any other way to fix it?
Or please let me know where I should check and/or modify the registry.

Thanks,

Ray


"Kelly" wrote in message
...
Hi Ray,

The former.

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
Kelly,

Should I apply it to the pc with CD-ROM drive or the pc to access the
CD-ROM
drive. Thanks for your further advice.

Ray

"Kelly" wrote in message
...
Hi Ray,

Try the edit on line 264 (right hand side)
http://www.kellys-korner-xp.com/xp_tweaks.htm

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" wrote in message
...
I configured the CD writer and DVD/CD rom to be shared in workgroup

on
my
desktop running Windows XP Pro. All the users in workgroup can see

the
drives but not allow to access. I have given the write access to
everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray














  #73  
Old July 27th 04, 12:33 AM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

I agree that on a high traffic network such as that, the burning speeds
should be lowered considerably. It is possible to allocate a percentage
of the network to allow for a dedicated transfer of this data, but that
would reduce the amount of bandwidth available to the rest of the network.

I am still unsure as to whether or not Windows will natively supports
buring a CD over a network. I do know that such programs exist as I have
tested them out. Take a look at Nero NET:
http://www.nero.com/us/631934399251526.html

----
Nathan McNulty


Mike Matheny wrote:
Sorry, from my experience on a 100 mb LAN (and this is at NASA, so it's not
idle!). Have never had a coaster burning from the network at top speed.

Mike


"Nathan McNulty" wrote in message
...

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:

In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:


When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.

Well, you're correct about not writing to the CD writer, but wrong about


not

being able to supply data fast enough through a network - even the


fastest

IDE subsystem cannot perform as fast as even a 10mb network.


Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.




  #74  
Old July 27th 04, 12:34 AM
Steve Winograd [MVP]
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

In article , "Ray"
wrote:
I configured the CD writer and DVD/CD rom to be shared in workgroup on my
desktop running Windows XP Pro. All the users in workgroup can see the
drives but not allow to access. I have given the write access to everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray


When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
  #75  
Old July 27th 04, 01:56 AM
Nathan McNulty
external usenet poster
 
Posts: n/a
Default CD writer and DVD/CD rom can't be shared in workgroup

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
In article , "Mike Matheny"
mikematheny@swbelldotnet wrote:

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.


Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.



Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.

 




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