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  1. 24th Jun 2009 21:24 #1
    tb582
    tb582 is offline
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    Join Date: Feb 2005
    Location: United States
    I have a bunch of MP4' that I want to change the "perceived" frame size of - ie they are 1280x720, if someone were to look at it in media info I want it to show 640x360 - I'm assuming I'll probably need to use a hex editor but I'm not sure what I'm looking at nor what values I need to change.
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  2. 24th Jun 2009 22:13 #2
    jagabo
    jagabo is offline
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    Join Date: Dec 2005
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    Look for the hex sequence 05 00 02 D0 (1280x720) and change it to 02 80 01 68 (640x360). It will be near the start of the file:



    It may not play properly after doing this.
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