Images in Mobipocket files:
I recently came across a problem with Calibre's import on Mobipocket files.
http://calibre.kovidgoyal.net/ticket/1645
Kovid says the problem was that mobi2mobi can create non-sequential image records. That is, there can be some non-image records between the first image in the file (pointed to in the header) and the last image.
I'm not sure this is a bug myself, although if Mobipocket itself doesn't create files with images mixed in with non image data, perhaps mobi2mobi shouldn't either.
The real problem is, I can't see a clean way to fix the issue. Any ideas?