Previously, I've bought music videos from i-Tunes and put them on my SE Xperia X10, and been able to watch them with no problem.

So I thought I'd try and put some movies and TV programmes on there too. Bought 2 episodes of Glee, in HD so you automatically get the SD copy too, but neither definition works! It just says 'cannot play file'.

I'd understand if i-Tunes videos are not compatible with my phone at all, but it plays other m4v videos fine. Have I missed a setting somewhere?

Thanks in advance! xx

Could it be that music videos, like music are DRM free, but TV shows and movies aren't?

In order for a TV show or movie to play in iTunes on a PC or Mac it requires that machine to be "authorised" for that file, the same way that it used to with music before Apple made all the music more easily transferable.

http://ipod.about.com/od/advanceditu...t-Does-Not.htm