I have a movie that's been converted from a .mpeg to two Multitrack XA files for burning with the Mac Toast burning app.
Most Mac users can't burn anything longer than 79 or 80 minutes. Mac burners won't do overburn.
If I can whittle down the smaller of the two tracks, from 1.4 MB to almost anything smaller, I should be able to fit the film on an 80 minute disc.
Is there any formula as to what I can take out or leave in the text of this first file?
Can I convert the larger XA file and produce a smaller second XA file than 1.4MB? Lots of film files have much smaller XA files than this one.

Any help and info much appreciated.
Thanks, Dave