I am running Ubuntu 14.04 LTS 32 bit. I have installed HandBrake from add-apt-repository ppa:stebbins/handbrake-snapshots (thus avoiding the Debian issue) but I've found that all of the MP4's play the first 27 mins 55 secs (+/- 2 seconds) and then fail.
I've tried a number of movies and they all seem to do the same.
Is there something magic about 27 mins 55 seconds?
Any ideas?