MPEG2 files can have a variety of audio tracks and formats. If you don't have the proper codec installed for what your MPEG2 file has, you won't have any sound.
LPCM is the lowest compression, oldest and most universal audio format for MPEG2. MPEG1-L2 compressed audio is nearly as old and most editors can decompress it. AC3 is fairly recent and usually requires an extra codec installation. DTS is even newer and very few editors can do much with it.
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System - Athlon 1.4GHz, Win98, Hauppauge PVR250 receiver and compressor.
Software -Magix Movie Edit Pro 10, Nero 6 + NeroVision Express, Moho 4.61, PSP 8.1, Bryce, Quicktime 6.52 pro, Goldwave 5, DVD-Lab.
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