thinking about this some more, could DRM stop the tracks from being played on a different computer/iPad than the one they were downloaded to.
Curly
you are probably right...maybe he could tell us what format they are in and what app they are using to play them with.Is there any DRM on music and movies which restricts to only one computer/device? Even Apple allow it on 5 devices.
Without more information on his problem it is difficult to tell. A wild guess might be that some films legally purchased on DVD but not ripped into the correct ipad format?