Many thanks BookJunkieLI. I tried:
{#category}/{title} - {authors} [{publisher}, {pubdate}]/{title} - {authors} [{publisher}, {pubdate}]
but it doesn't work. I created the categories with 'Manage User Categories' as in the screenshot:
Any ideas how to get this to work? Since I will be creating many categories to organise my ebooks.
Also with regard the long titles, is this a bug in Calibre? I don't see why it can't handle folder names that length. I edited the metadata in bulk and this is one of the main reason I decided to use Calibre. I really don't want to have to started manually editing folder / file names.
Do you have any suggestions re: colon / underscore issue?
Many thanks!