Ebooks as you get them have very different naming schemes and I would
like to rename them according to a common naming convention which should
include some important bibliographic data like publication year, title
(up to what length?), ISBN (which one? ISBN10, ISBN13, the "better
known" ISBN of the printed version or the one of the electronic
version?), perhaps publisher and author(s) (how many?).

As you can see I have some idea but even more question marks. Are there
any templates out there I could use or adapt?
Ideally I would write a script to rename the books, so it should cover
most real world cases in a sensible way, so it contains the essential
data without getting too long.

Any ideas?

-Michael