I'm the original poster, and I'm still having this problem. I just ran xine --bug-report foo.mp3 and have attached the bug report.
xine-extracodecs 1.1.2-0ubuntu2 is installed. dpkg -l \*xine\* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed |/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad) ||/ Name Version Description +++-======================-======================-============================================================ ii amarok-xine 1.4.3-0ubuntu10 xine engine for the amaroK audio player ii kaffeine-xine 0.8.2-0ubuntu2 Xine engine for kaffeine media player ii libarts1-xine 3.5.5-0ubuntu1 aRts plugin enabling xine support ii libxine-extracodecs 1.1.2-0ubuntu2 the xine video/media player library, binary files ii libxine-main1 1.1.2+repacked1-0ubunt the xine video/media player library, transitional package ii libxine1 1.1.2+repacked1-0ubunt the xine video/media player library, binary files ii libxinerama-dev 1.0.1-4build1 X11 Xinerama extension library (development headers) ii libxinerama1 1.0.1-4build1 X11 Xinerama extension library un totem-xine <none> (no description available) ii x11proto-xinerama-dev 1.1.2-3ubuntu1 X11 Xinerama extension wire protocol ii xine-ui 0.99.4-0ubuntu6 the xine video player, user interface un xinetd <none> (no description available) ** Attachment added: "Xine bug report" http://librarian.launchpad.net/5053238/BUG-REPORT.TXT -- MP3s or OGGs won't play in xine-based apps after upgrade from Dapper to Edgy https://launchpad.net/bugs/70842 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs