ogg file has been marked as type "application"?

Hrm, take a look at http://api.drupal.org/api/drupal/includes--file.mimetypes.inc/function/f... - the 'ogg' file extension is default mapped to 'application/ogg'.

The real problem is that both audio and video ogg files can be both .ogg files and there really isn't a standard to differentiate them. I guess we could maybe update that default mapping to map '.ogg' to audio/ogg since '.ogv' is mapped to 'video/ogg'.

Ah now I see this on http://en.wikipedia.org/wiki/Ogg

Before 2007, the .ogg filename extension was used for all files whose content used the Ogg container format. Since 2007, the Xiph.Org Foundation recommends that .ogg only be used for Ogg Vorbis audio files. The Xiph.Org Foundation decided to create a new set of file extensions and media types to describe different types of content such as .oga for audio only files, .ogv for video with or without sound (including Theora), and .ogx for multiplexed Ogg.

We should file a core patch to correct this and also fix this in File entity in the meantime.

Core patch has been filed at #1239376: .ogg file extension incorrectly mapped to 'application/ogg' in file_default_mimetype_mapping() and could use reviews.

Please test the following patch for file_entity 7.x-1.x.

#10: 1239064-fix-ogg-mimetype-mapping.patch queued for re-testing.

Committed #10 to Git. We have to just live with test failures for now.
http://drupalcode.org/project/file_entity.git/commit/9eba2c6