It's been rare but there have been times after converting a book from mobi or azw3 to epub that I've screwed things up cleaning up its formatting and have needed to start over and re-convert it, but probably not after beginning to read it. My C drive is only about half full so for me there's no need to reduce the clutter. I do have a Finished column which I could use for knowing when to delete the mobi and azw3 formats but it just seems like unnecessary busy work to me.
If I was running low on space I have a 6t drive that I could move the calibre library to. I also like having the azw3 and mobi formats for telling me that they're purchased books, differentiating them from library and PG books I downloaded in epub. (I used to have a Source column for where I got the book from but was too lazy to keep it updated.)
Last edited by hobnail; 11-29-2022 at 05:48 PM.
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