One of Android’s major shortcomings is its lack of compatibility with many audio and video file types. Fortunately, doubleTwist stepped in to fix the audio problem, but what about video playback ...

VLC even plays video files encoded with the new MPEG-4 H.264 AVC codec, which is most suitable for compressing large high-definition video files.

A simple trick is that if you run the source file through handbrake at the default settings, you'll get a much smaller file in H264 mp4 that will play almost anywhere, including iPads, iPhones ...