> I repaired a few scratched CD's out of my collection before I burned the lot to mp3. > I used the motorized version and achieved OK results. > > The machine removed the shiny surface on the CD, and left a machined finish from the > circular pads and supplied abrasive paste. > > This method only works for light scratches on the underside of the CD. > > I had a Sisters of Mercy CD single (More) which pieces of the printed layer had > de-laminated from the surface. After using the CD resurfacing machine I could see > through the plastic when I held it up to the light. > > When ripping my CD's to mp3 format I found that there was variation from different CD > and CD/DVD drives as to how they picked up scratches on the surface of the CD during > ripping. > > My modern Asus 32x CD/DVD had trouble with scratched CD's but my older CD/R drive had > no problem with the same disk. > I ended up replacing about 5 CD's in my collection with ebay purchases. > > Hope this helps. > > http://www.youtube.com/watch?v=qDuW3NvjqJY
It's abrasive? Keep it away from anything other than CDs, then.