This product works as advertised. So far it has flawlessly repaired 5 music CD's and one computer program CD. The computer disk had a deep scratch and would hang up at a certain point in the program. Now it works fine.
DiscRestore 3680 DiscRx Pro Series II - DiscRestore International
It really works!
This fixed a fairly deep scratch to a CD I just bought, which I accidentally damaged while putting the CD back in the case. I've also used this to fix every damaged DVD I've rented from Blockbuster. No more returning movies because they skip. Fixing a CD or DVD takes only about 5 minutes.
DiscRestore International - DiscRestore 3680 DiscRx Pro Series II
Removes Minor Marks But Not Much Else
Okay first of all, if you expect the repair portion of the product to make the play surface of your disk look like new, you will be sadly disappointed. I tested the product on a CD-R that had some scuffs. It removed the scuffs, but it leaves lots of little micro-scratches in the direction your buff the disk. This is why it warns you to make sure you buff in a radial direction. These marks will not cause any problems when they are in a radial direction because of the error correction bits on the disk; but if they were in a circular direction, they could cover all the error bits for one piece of data. You do need to bring the disk close enough to your face to see these micro scratches though. Also, do not expect it to remove any scratches with any depth. You might be able to get rid of them will a lot of work using the polishing strips provided with the product (which are essentially sand-paper), but once again you will be adding micro scratches to the surface of the disk.
As for the protection portion of the product, all it really does is make the disk surface anti-static. Thus you should not get a bunch of dust sticking to the disk. If you are expecting some miracle protective coating to stop the disk from being scratched when you drop it on the road accidently, you mine as well look somewhere else.