Comment 87 for bug 153702

tikky : Mmh, I'm not sure how you can verify if your CD (or CD drive) is damaged, but that really sounds like a hardware issue rather than a bug, though nothing proves it. Typically, to test devices bad blocks, badblocks can be used. I don't know if that can make sense for a CD drive but if you want to give a try, here's something you can do to verify if your CD or if your CD drive has problem :

1. Start your computer normally on the currently installed ubuntu version.
2. Insert your CD in your CD drive
3. launch this in a terminal : sudo badblocks -sv /dev/scd0 (scd0 might be scd1 if you have more than one drive)

If badblocks can read ALL sectors of the CD, it should not list any number. However if it fails to read any sector, it will list the sectors numbers that can't be read due to hardware errors, one by one.