Android: By default, Android phones can only handle a small number of video types, and leaves your ripped and downloaded files in the dust. RockPlayerBase, on the other hand, nimbly plays DivX, AVI, XviD, MKV and other file types.
A firmware update will bring two great features to the Zune HD in the second quarter of this year. The first is native XviD support, which is self-explanatory. The second requires just a tad more explanation.