Images in Mobipocket files need to be under around 63KiB in order to be displayed on Palm versions of the Mobipocket reader.
See
http://www.mobipocket.com/dev/articl...ile=images.htm
The author name in the EXTH records uses è for è. This doesn't get displayed correctly in the CyBook library, and it also doesn't get displayed properly in the Desktop Mobipocket Reader properties dialog (right-click/Properties) although it does in the preview I've tested changing this to be encoded as UTF-8, (i.e. hex C3 A8 for è) and this displays correctly in both places in the Desktop reader, and also in the Cybook library display. So I think it would be best to encode all the text in EXTH records as UTF-8, if that's the encoding specified in the MOBI header.
The table of contents displays OK in the Cybook, but it's a bit odd to have two links for each chapter - one of the number and one on the title. It would be better, given the navigation limitations to have either one link covering both, or just a link on the title of each chapter.
In addition, the chapter numbers aren't lining up exactly - and some of them have the left side of the first number clipped. I'm using a non-standard font (Fontin), but I see that Georgia shows the same fault, and Verdana even more - I suspect it's just a table fault - not really enough space for the two numerals and full stop for the higher chapter numbers. This problem doesn't show up in the Windows Desktop reader.
But otherwise, on a brief examination, it seems to be a very nicely formatted and well-formed Mobipocket book. I like the care take on the first paragraph of each chapter, and the indents and (lack of) spacing of other paragraphs.
Are there any particular sections you'd like checked?