Not done a save to disk, so don't know how it saves things, I imagine it can be a pain if its not very customizable in that area. (I just back up the library in its entirety, so have no need of the save to disk function...yet)
Not sure why you would need to search for the "&" Like theducks said above, and I tried to previously, the Authors get split, into separate Authors. Are you trying to find books that have more than one Author for some reason?
I hope their is no issue re: general banter
or I will soon be in trouble. lol