When dropping flac files on gtkpod 2.1.4, the conversion script fails with the following error message:
Freeware Advanced Audio Coder
FAAC 1.28
/usr/bin/faac: invalid option -- 'w'
/usr/bin/faac: unrecognized option '--artist'
/usr/bin/faac: unrecognized option '--title'
/usr/bin/faac: unrecognized option '--year'
/usr/bin/faac: unrecognized option '--album'
/usr/bin/faac: unrecognized option '--track'
/usr/bin/faac: unrecognized option '--genre'
/usr/bin/faac: unrecognized option '--comment'
Usage: /usr/bin/faac [options] [-o outfile] infiles ...
I'm using Xubuntu 13.10 (Saucy).
Turns out some faac builds do not support the mp4-specific options. For example:
https://bugs.launchpad.net/ubuntu/+source/faac/+bug/1274342
Perhaps gtkpod should use a more portable approach to converting to m4a, or at least notify the user when it is unable to do so. The current behavior of failing silently is really awful.