As a follow up - joining M2V files in DVDSP 2 works great! No glitches or freeze frames.
This is really good news for the following scenario:
Let's say your working on a 2 hour project, be it a doc or a feature film. Often you'll be working with the plan to have a screening on a certain night. Usually you'll be working with the director or producer up until a few hours before the screening when you have to stop and make a tape and then off you go to the screening room with the tape.
But what do you do if they want to sceen with a DVD and not a tape? VHS looks awful and with BETA you have a 90 minute limit so you wind up on 2 tapes. But to make a DVD - we're talking about 6-8 hours of time so that pretty much kills working on the day of the screening.
Well, now you can break your assembly into 10 minute chunks and the night before the screening use compressor to generate all the M2V files overnight. The next day you can work with the director or the producer for a half a day and then just remake the M2V files for the ten minute chunks that you made changes on.
Now you can generate your AIFF files, run APACK (this is relatively quick) join everything up in DVDSP and burn the disc in time for a screening.
The only problem here is if in that last 1/2 day of editing before the sceening, if you make changes to too many of the ten minute segments you have to spend more time remaking more M2V files. But usually, changes made the day of a screening are not going to be across the board. It will usually be limited to 2 or 3 areas of the assembly.