Yea, it took the other two book 55 and 133 minutes to complete but they finally did without any errors.
Is there a way to tell calibre how many conversions to process at one time? I'm pretty sure there is, I just can't remember where I go to do so. AS for the error message I got on the other book, Is it bad form to post it in this thread? Should I start a new thread for that one?
ETA: Never mind, started new
thread for those with errors.