I have the Aiptek 3D camera i2 and 3D frame P8, creates and plays side-by-side half-width 3D 720P AVC H.264 mp4 files.  When I create my MEP MX movie from the Aiptek H.264 camera files and go to export mp4 in H.264 mp4 the file cannot play on the P8, the screen locks up and I have to reset the frame.  I am forced to use the packaged Arcsoft MediaConverter to convert to 1280x720 using the Arcsoft H264 and AAC Encoder.  I get a tiny bit of success with the DivX H.264 avi encoder within MEP if I rename to mp4, the frame plays it but video is too fast, faster than audio.  My best success has been to export an mp2 file in MEP and then run it through the MediaConverter, but I would like to be able to use MEP and skip the intermediate MP2 encoding and encode in mp4.  The frame runs the native 720P Aiptek camera mp4 files fine.  I have tried multiple options of the MEP mp4 export options and not hit on one that does not lock up the frame.  Any ideas?