[M4IF Technotes] mp4 file format

[Hans-Juergen Bardenhagen]

On Thursday, 26.06.03, 09:04 Trevor wrote:
> Could anyone here tell me which standards should I refer to
> in order to create an mp4 file playable back by QuickTime6.3,
> envivio plugin or MPEG-4 compatible DVD player?  Your answer
> will help me very much.

It is not that easy, because almost all decoders only support a subset  
of all available MPEG-4 profiles. For example QuickTime 6.x does not  
understand the Main and LTP profiles in AAC files nor does it recognize  
MPEG-2 AAC LC bitstreams in a MP4 container (or MP3 either). It also  
can't play multichannel AAC/MP4 files, so you would have to know all  
these drawbacks first before creating a MP4 file that is playable in  
QuickTime. The same is probably true for other implementations of the  
MPEG-4 standard.
ZZee ya, Hans-Jürgen