@ dwanthny,
Thanks a lot for your answer.
Following the thread you gave, I first supposed it was a Topaz file.
As suggested, I looked at it (DRMd version) with Notepad++, but at the end of first line appears "BOOKMOBI" and nothing elsewhere like "TPZ".
So I assume it's a MOBI format ?
I downloaded and converted the sample (no DRM, so no need for the script), and it has the same problem : so it can't come from DRM removal script !
MOBI format, no script problem, can you think of anything else ? Otherwise I return it, and next time you're right I'd better try the sample first. But I'd like to understand (and I'd also like to read this book)...
Thanks again for your help and sorry for the mistakes, English isn't my mothertongue even if I can read it pretty well
