I wanto do losslessly join the mp4 video clips shot with the phone.
I usually shoot most clips in the same resolution (often 720p).
So it is a waste of time, energy and above all quality to get them joined with software that rencodes (transcodes) it.
It is ridiculous to shoot in HD and re-encode - the crispness of the original image is gone forever.
I would prefer a solution that works on the mac, however windows/linux are ok too.
On the phone, the samsung video maker seems to re-encode, and anyway the interface is limited.
I tried (on a set of mp4 clips of same resolution)
and of course Mac's own iMovie09
MP4Box often crashes, SimpleMovieX resizes to small, MpegStreamClip strips the audio away,
my best results so far is to use MpegStreamClip to save in .mov (with multiple audio streams, not very portable)
then open the mov with SimpleMovieX and export it to mp4 - video passthrough, re-encode audio with best quality.
if anyone has an easier solution, I'd welcome it!