There is definitely an issue between M100 and iDVD (or perhaps Compressor)
I can no longer encode M100 files, either self-contained or reference,
with iDVD. This was my way of churning out quick client previews.
On a G5 with 10.4, latest iDVD, QT etc, M100 softwar codec installed or NOT installed, it won’t encode, either quiting entirely or just sitting there.
Same result on a G4 10.3.8, M100 hardware, no go.
I need to test compressor by itself at some point
Jim