The following parameter is verified.
Video parameter Condition
Windows size must be same to be compatible
Frame rate must be same to be compatible
Aspect ratio must be same to be compatible
Bitrate If bitrate is different, it will be outputted as VBR.
VBV buffer size The most lergest VBV buffer size among merged MPEG files wil be outputted.




Audio Parameter Condition
Sampling frequency must be same to be compatible
Cannel mode must be same to be compatible
Bitrate must be same to be compatible

----------------------------------------------------------------------------------
Taken from tmp enc website

i have 2 mpg files... both meet the requirements specified above
yet they arent compatible when i try to combine/merge them... help plz?