BSOD Stop Error

Last night, after playing a Blu-Ray disc in my WinXP computer using VLC
Media Player, I closed the program, opened the drive, and tried to turn off
the computer. I got a BSOD with a Stop Error. Microsoft says this error
indicates a problem with a device driver--caused by either new hardware or
new software. I haven't installed either hardware or software in a while.

Could the BSOD be related to the Blu-Ray disc? As I noted in a previous
post, I didn't know I was playing a Blu-Ray set (a season of a TV series)
until it took 30 seconds for the disc to start playing. I didn't think my
3.5 year old Dell laptop (Precision M4300) would play Blu-Ray discs at all.
The drive properties show HL-DT-ST DVD+-RW GSA-T21N.

I'd be grateful for suggestions about why I got the BSOD and what I can do
to prevent it, if I can...

Thank you!

Jo-Anne