I am with bagggi on this one. I have several CDs that will work on one drive and not on another for no apparent reason.

1. Clean the CD drive................run the disk 3 or 4 times.
2. Carefully clean the CD..................outwards from the centre............DO NOT use a circular motion.

The use of toothpaste is a last resort. It is a mild abrasive, but is the same principle as is used in commercial CD recovery devices. What it does is remove surface blemishes and allow the underlying data to be read.

I am not sure if this will work with a CD:

http://www.roadkil.net/

"Unstoppable copier"

You should also try the CD on the machine that was used to create it

As a general rule do not use the lead in and lead out tracks to store data. They are not as reliable as the main body.