I have uploaded a number of mp3 files, and included in appropriate places {mp3}file{/mp3} for AllVideos to play them. This all works perfectly. BUT when I look in the Media Manager (Joomla 3.2.2) I see only a few of the mp3 files - apparently the ones that were uploaded a long time ago. I want to use the Media Manager to delete some of these mp3 files now but they don't appear there. I can see that the files are there using FTP, so I could manage them that way. But they should appear in the Joomla Media Manager!

Hi. This is an issue of the media manager, not AllVideos. I can suggest 3 things:

1. Make sure the filenames are web-friendly. Avoid capital letters, spaces and other special characters.
2. Check the files permissions.
3. Go to docs.joomla.org/Filing_bugs_and_issues to read how you can submit issue to Joomla! if you are sure that this is a Joomla! issue.

AllVideos does not uploads any videos so it has nothing to do with that.