Comment 9 for bug 468371

I have this same problem. When I have MIDI files in my playlist, Rhythmbox asks to search for a suitable plugin (audio/riff-midi) and doesn't find any. MIDI files still play fine, it's only when switching directly from one MIDI file to another that it crashes. I can switch from a MIDI file to an MP3 or OGG file and back to a MIDI file without it crashing. It's not much of a deal with my large randomized playlist of 99% non-MIDI files, but still an annoyance when I want to specifically listen to more than one MIDI file.

I haven't used Rhythmbox much until recently, so I don't know how long this issue has been around. I have Ubuntu 9.10 Karmic (kernel 2.6.31-19) with packages up-to-date.