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Where can one obtain source for mp4info or an alternative that returns values compatible with bac.sh? The project that contains mp4info has no tarballs available since 2007…
Sorry for anwering so late, mp4info is part of the mp4v2-utils package. It is available at least on Ubuntu (I suspect in most distributions as well) and its source code is available from http://code.google.com/p/mp4v2/.
I have updated the project summary accordingly.