[Magic Man]

Thanks all for the replies, much appreciated and I fully understand your points.

I suppose my main issue is that, and certainly with a large repository of books, I just end up with a duplicate store - I guess I could delete the original directories from where the books are imported from but, as you say, the directory names are limited. In my ideal world I'd have Calibre managing my existing library and adding the converted books there directly. I'm perfectly happy with the way the directory structure and meta data storage is done - it could be a lot more convoluted like iTunes but thankfully isn't - the only concession being the numerical value in the directory name. I can live with that.

I've tried to think of it as a 'black box' but I know my converted versions from the originals are there, I know the downloaded cover art is there etc. so I want to keep that data and think of it as my ebook library outside of Calibre as well as in. No worries though.

Originally Posted by Worldwalker

Thankfully, none of the more recent ones have started out by insulting Kovid, but they were doing that for a while, too.

Wouldn't dream of doing that, the software is excellent and the best I've used for this purpose.

Thanks again...