I will re mux the files as you suggested.
I have also read about other people having the same desync problems as myself on another forum.
There answer was to downgrade the DVD2SVCD program from the currrent verion to the 1.0.5 build 4 version
REall the early 1.06 versions that used besweet have this out of sync audio problem. (1.06 build 1 - 1.06 b1 pre1 & pre2)
I can't comment on pre 8 or the new 1.06 build 2 because I went back to
1.05 build 4. I knew this worked for me. )
So
I will try the 1.0.5. build 4 version to see if it solves my problem.