mkv to mp4 container issues..

ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.2
Format settings, CABAC : Yes
Format settings, ReFrames : 3 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 1h 30mn
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 fps
Original frame rate : 29.970 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Default : Yes
Forced : No





ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : A_AAC
Duration : 1h 30mn
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Delay relative to video : 33ms
Default : Yes
Forced : No









i have serious issues with repackaging mkv containers to mp4 for xbox 360 playback.....


started with gotsent and the output files were 10 to 15 seconds out of sync..
then i tried xenonmkv and it was more succesful..every output file was now only 1-2 seconds out of sync..
so now i try using avidemux 2.6 and 8 times out of 10 when muxing the file to mp4 i get a error message saying video is too short..(also should be noted when avidemux does work the resulting mp4 file is flawless with no sync issues)




all i need to do is change the container to mp4 without touching audio/video...


any ideas?? and please no ffmpeg i'm new to all this...i have no idea how to use command line...