I have a dell xps with a cd and dvd drives. Recently I have purchased several dvds with digital copies to play on ipods, etc. The problem I have is that every time I put the digital copy disc into my cd drive, it is never recognized. When I try to look at the contents of the disc through explorer, it asks me to insert a disc. I have no problem with audio cds or other cds, only the digital copies. I have tried the dvd drive as well and get the same problem.