Trying to change the titles on some mobi files and mobi2mobi isn't liking some of them, even though they work with Mobi reader on Windows and Kindle reader on Android.
The error I get is
bogus database name! is this really a PalmOS file? at Palm/PDB.pm line 537.
No, not a Palm file, especially not when it opens with the latest Kindle Reader app for Android which has broken PalmDOC support. (I've gone back to a slightly older version that's not as bloated and buggy.)