I download ASL video files from Worldwide Association of Jehovah’s Witnesses
When I download WMV or MV4 files over-the-air or to my computer and drag and drop using mass storage>>> the files work and play no problem without any conversion on my wife's 8900 OS v4.6.1.231

If i try the same method on my 9700 OS 5.0.0.330 the MV4 files will reboot if i attempt to play them. The WMV files will play. But if I attempt to fast forward or rewind error message pops up "file type unsupported".

Anyone know why? It's a pain to have to convert each time especially when they work flawlessly on an older phone. Any solution?

Update: I just installed OS 5.O.461 to my wife's 8900 and her phone does the same thing now. So apparently it is an issue with 5.0 OS. Perhaps with OS upgrade problem will be fixed.