Internal Muxer Error

This seems to be quite a generic error in DVD SP, but hoping someone could shed some light on possible causes.

I have a 60min DVD with two tracks - a main film and a trailer - both pre-encoded in Compressor to Best Quality DVD MPEG2 and Dolby Digital Professional 2.0 audio. There is one menu with simple buttons to both tracks.

When I build the project I get the following log and Compiler error:


Building Project Dragon DVD 100908_01.dspproj
11/09/08 13:00:26
Build Folder /Volumes/Lucille/Facing The Dragon/DVD/DRAGON 100908
Starting DVD Build DRAGON_DVD_100908_01...
Compiler Initializing...
Precompiling Project DRAGON_DVD_100908_01
Compiling VMG Information...
Created 7 PGCs in VTSM1
Created 5 PGCs in VTSM2
Created 8 PGCs in VMG.
1 Menu(s) will be created...
Compiling Menu PGCs...
Compiling Menu#1 (Menu 1)...
Rendering Menu:Menu 1,Language:1...
Writing VIDEO_TS.VOB
Compiling Menu PGCs...
Writing VTS_02_0.VOB
2 VTSs and 2 Titles will be created...
Compiling VTS#1 (Film)...
Muxing VTS_01_1.VOB
Internal Muxer Error
Build cancelled


I'm running the latest Final Cut Studio (DVD SP 4.2.1, Compressor 3.0.3) with latest OS X 10.5.4 on a Macbook Pro 17" C2D 2.5Ghz/4GB/200GB.

Any help much appreciated,

NickScale

Mac Pro 2.93 GHz Quad-Core Intel Xeon
6 GB 1066 MHz DDR3
OSX 10.6.4, FCP 7.0.2

The internal muxer error also happened to me a few times.
9 out of 10 times something went wrong prior to the building process which causes DVDSP to crash.
Even though the export from FCP and the m2v file created by Compressor didn't cause a problem at that point, it may cause the "internal muxer error" by DVDSP in the end.

You can look at the particular VOB (visually!) to find out at which point the process stopped.
Compare this point with your original FCP footage file, i.e. the one which you've used to be encoded by Compressor.
Most likely you will find a frame (or a few frames) that looks screwed up.

Remove those, and re-encode the footage by Compressor again.
You should be fine.