I had troubles downloading it (died 3 times before the end, even with a download manager) but at last it came in one piece. It was loooong, but worth it.
I had a previous "version" of yours --- how nice, this time the files are sorted by chapter !
Quality : you should have used VBR instead of CBR for the MP3s. The quality is good though, and you kept the original 22KHz "quality".
Besides all this, I forgot to thank you ; now it's done