I have been trying to convert DVD's to generic Divx files using CloneDVD mobile. The DVD's I am using are copies that I made using AnyDVD and CloneDVD. I keep getting Processing Errors on many of these discs that are caused by read errors. The message says "If reading the media has failed, please clean the surface and try again. Sometimes there are visible scratches or smudges on the disc and cleaning helps, but more often no marks are visible and the processing error occurs again after cleaning. Are these copies the problem? Is there anything that can be tried to make conversions more successful using the copies?