I'm use ubuntu 7.10 and I use amarok to listen to music (ogg and mp3). I started getting this problem - possibly following a backup of the music folder which is on a separate hard drive: the problem is that “no suitable demux plugin” was found - this is after years of everything working perfectly. without any action from me, the next thing to happen was for the files not to be found “local file does not exist” in amarok. so I look at the files directly in nautilus rather than a music app. they are there but not recognised and so, can't be opened even though they  are ogg. now I cant even see them listed as if they weren't there. I was told a workaround was to kill nautilus which worked for a while even though I had to get amarok to rescan my collection but now not even that works.

This isn't an amarok problem but I thought here would be a place where people are having the same problem. The files no longer appear to exist but during the early part of the problem, they wouldn't play on any player. I've found other posts but they're all to do with an app and a plugin sort of problem.

I'm told this is a bug but cant seem find anyone else with the problem. am I alone, is there a way to play my music? thanks for any help.

I've read that there is a bug related to reading music files in nautilus to which restarting nautilus will temporarily resolve but it seemed i had a different problem. Ubuntu 7.10 wasn't reading my music drive because it was failing. the symptoms fitted the description of the bug until everything got worse. I've changed my drive now and it all works out. this may help other readers.