I'm trying to rip THE OTHERS to DVD-R

I used SmartRipper to get the M2V and AC3 files, but the M2V is 5Gb even without the end credits so it needs to be transcoded.

I used tmpgenc to convert it (tried both VBR, CBR) and then imported the M2V and AC3 into ReelDVD - but now the movie is 5 minutes longer than the soundtrack.

How's that happen? Is there a workaround?

I've tried various other ways to transcode without success; rempeg2 did a really poor job - it's hard to describe how bad the output looked.