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microsoft.public.windows.vista.music_pictures_video

Hello

I seem to have a similar problem. After burning a MM project on DVD (which
worked fine), I wanted to fine-tune the project (on the same computer).
Instead of opening it, MM gives the rather mystifying error message
"XXX.MSWMM cannot be opened because it is not a valid Windows Movie Maker
project.

I tried removing third-pardy filters, installing original MS codec, all to
no avail.

Need HELP please.