Hi
Daniel,
In order to create an mp2 file follow the following steps :
1) First Convert your file into . mpeg4 file extention using Mpeg Stream Clip. It a free software available .Then convert again using the MpegStream Clip, select > File > Demux> Convert to M2V( under the demux tab) and choose the quality as high.
2) For audio, again you can use Sound Track Pro to convert to .AC3 File extension.
Hope this partially solves the problem.