The products labeled Plastic Cleaners will not remove any heavy scratches, go for the Polish. I use Plastic Polish designed for automotive convertible top plastic windows, have pretty good luck. Any really bad deep scratches first get the Disc Doctor Treatment described in the OP. I then get rid of...

CRTGAMER, I'm gonna try the plastic polish & cleaner method you suggested. I'm gonna try it on PS1 cds, and I'll so try on their jewel cases, see if I can also remove the scratches there... Does anyone recommend any of these: m http://ecx.images-amazon.com/images/I/31SF50A3AFL._SL500_AA300_.jpg ...