ToHeart2 mov.pak file

I'm trying to extract the ending movies of ToHeart2, but when I extract them with ExtractData, I get the avi files, but there isn't any sound when I play them. I'm wondering if the videos themselves don't have music in them in the first place. Also, when I tried to change them into an .mp4 file, it didn't work for some reason, which leaves me to believe that these .avi files are a bit different for some reason. Is it just that I'm extracting them wrong?

[zalas]

As far as I could tell, these are standard XviD .avi files created in either AviUtl or Virtualdub(Mod?). It's possible they just used .avi for the video content, since they only embedded XviD in their code.

Is there a way to convert them?

[risako]

Mplayer/mencoder? I haven't messed with these yet, but I've found with most other vns if you can find the movie files, mplayer can play them and mencoder can encode them.