GNOME Bugzilla – Bug 609804
Apple Lossless files will not play
Last modified: 2010-02-13 05:25:15 UTC
Apple Lossless files cannot be played in rhythmbox. Same file can be played on another player like VLC media player without issues. This bug was originally filed in Launchpad, Ubuntu's bug tracker at: https://bugs.launchpad.net/ubuntu/+source/rhythmbox/+bug/520315
Works for me. You'll need qtdemux (gst-plugins-good) and gst-ffmpeg installed to play alac files.