Yesterday, new jailbreak software has been realease by Geohot. It's greaest new for every iPhone 3GS user.

WARNING :
                      You must jailbreak under WindowsXP 32 or Vista 32. It will not work under 64bit O/S
                      Please make your iPhone (step 2) before jailbreak to avoid some extra troube

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Hi, How are you?
I've fixed some bugs and decied to open the source code for public use.

MP4TE v0.5.4 [2009/02/17]
(1) IMPROVED : SMI importing function has been improved

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Quick Update
    
Some bug has been fixed,
  (1) If have a space in pathname, the sub title is not added
  (2) AVC : CABAC option is not detected correctly.

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I'm so worry  uploading this software for public use. 

Because of this program has been written/modified for personal use only.  it means this program have so many bugs and restriction.

Anyway,  I hope this software help who need the simple converting & sub-titling utility.

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iPhone can play MPEG-4 base video file(s).  The typical container file extensions are MP4, MOV, and M4V.

There two video coding method in MPEG-4 as follows

     MPEG4 ASP (or SP) 

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