I used besweet to resample an AC3 file to 320kbps.

The problem is that now, even thought the sound quality seems to be almost the same, the sound volume level is much lower.

What am i doing wrong?
What should i do or use to reduce the size of the AC3 file without dramaticaly reduce the volume?
How can i fix that?

I am trying to put 3 movies (Back to the future trilogy) on one dvdr.

After spending almost 35h encoding and compiling the project, to my horror, i discoverd that my project is about 200mb too big to fit on a dvdr (4.7gig my a$$ ).

Since it takes so long to reencode those movies on my crapy system, i figure i can just compress the audio files a litle bit. resampling the audio of the 3 movies at 320kbps reduced the total size by about 300mb which is a perfect fit, but the volume is much lower.

How can i fix that. i realy dont want to spent another 35 hours on reencoding the movies.