Every CD in the package was defective. Every one. I used two different drives (one BRAND NEW - one a couple of years old in a PC - works fine otherwise) with more or less the same result. Type of file didn't matter - source didn't matter. Some had static on the tracks, some just stopped after a song or two... mind you NO ERRORS occurred with the burning software (again two different ones - windows media player and BRAND NEW Roxio) so it appeared they would be fine. can't return them as I threw them out - blindly I expected the "next one" to work... JUNK