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Old 28th July 2009, 07:31   #2  |  Link
Wishbringer
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Join Date: Dec 2003
Location: Germany
Posts: 295
MP4 is the container, it is the same for psp and others.
Content matters:
PSP has some restrictions:
- Resolution (up to 480x272 and fixed 720x480)
- AVC Level and Profile (Level 3.0, Main Profile, not High)
- count of ref and bframes (2 ref, 3 b)
- some other encoding options (no b-pyramid)
- Audio: LC-AAC Stereo (no HE, no 5.1)

So for example you can't play a MP4 with 1920x1080 AVC Level 4.1 onto a PSP

Last edited by Wishbringer; 28th July 2009 at 08:02.
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