It doesn't seems possible to convert IBOOKS ebooks to MOBI format. The only way would theoretically be to follow a lengthy procedure of first converting IBOOKS to PDF and then PDF to MOBI. But such conversion chain would mean loosing all the advanced features of IBOOKS format, like bookmarks etc.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.
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