i converted 12 media files in wmv format to dvd format using tmpgenc. i then used movie joiner tool by rejump.com to join the mpg files. keep in mind each mpg was around 30mb to 60mb anyways after joining them the result was around 200 to 400mb. i opened dvd lab and imported the file & after it was done demultiplexing the file the result was an mpv and mpa file. My problem is that the mpv file is only 38mb and mpa is 60mb, when played back the mpv is not the full video. I'm thinking the joiner has done a bad job and dvdlab is only seeing the first file i joined with the others. what can i do. ? should i not demux the files. if so what could happend if i dont & is there anyway to fix these files by using tmpgenc again.