I have noticed several post about cleaning dvd's and cd's and removing scratches. This is what I have found that works the best. Don't make any
substitutes as none of this is expensive. For cleaning (removes almost everything, crayons, fingerprints, makeup, stickness, and etc), go to a hardware store and buy "denatured alcohol" (use caution, it is VERY FLAMABLE), then go to fabric store and buy 'soft white FELT CLOTH' (do not use felt sheets, they shed too much). Put some of the alcohol in a very small spray bottle and spray on recorded side of disk, let set maybe 10 seconds or so (longer will not hurt the disk), then wipe with felt ACROSS the disk, do not go in a circle. You will be surprised how clean it will get disk without any harm. If you have scrathes, the best thing is to buy and ELECTRIC disk doctor (online and at music stories, some carry it, DO NOT get the hand crank one, they don't work as good). Follow directions on disk doctor, if you run out of the fluid just use plain water. Then clean at the end with the alcohol and felt. This will usually take care of most problems.
Disk will be almost like new and easier to copy. Hope this helps some of you out there.
If I have put this in the wrong area, would the admins move it to the correct area.
fengtao thanks for the DVDFAB, best money I ever spent!