I thought it better to put this question in a separate post. I just downloaded the latest version of Handbrake which now includes both H.264 & H.265 video encoding. I did a trial run on an MKV file in order to compare the differences. The latter is about half the size of H.264, but sadly it won't won't play on any software that I have - VLC, QT 7 with Perian etc. Any suggestions for trouble free playback?