pask2155 wrote:So use the acetone and this will not hurt the disc at all?
Acetone and/or Goof Off (the name of a commercial product found in hardware stores which I think works better than acetone) will take off hotstamps and magic marker and darn near anything else-unless it has penetrated into the disc. Over time magic marker penetrates into the disc and although the markings fade as they penetrate (and continue to fade over time as they penetrate and disperse into the plastic) they cannot be removed by anything I have found.
If you leave corrosive chemicals on a disc long enough they will warp the plastic and probably eat right through it. But if you rub it on (to take off a stamp or marking or just to clean a disc) then rinse thoroughly in water it does no damage. I clean my discs with Goof Off and even after years of doing so I see no damage from the process. Too much chemical exposure is not good for your skin and the fumes should be avoided too.