[Fyron]

Erm... your CDs might have died. It tends to happen with CD-Rs. The ISO standard for the CD file system has been set for a long time (since before ME came out IIRC), so there shouldn't be any issue reading the data off of the disks in win2k, assuming the dye media has not gone bad. Do you have another computer handy to check them in? Friend? Work?

If you are talking about music CDs, win2k is able to read them fine, and list the tracks on the disk by number (there won't be any meta data, since thats not part of the music CD format). At worst, you will be able to read the music tracks in Windows Media Player.