Quote:
Originally Posted by 93terp
Any unintended consequences of deleting all the .opf files that have copied over from PC to uSD card?
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Those .opf files are mainly for calibre's internal use so that it can completely rebuild its database from scratch if something terrible happens on your PC. Your Kobo doesn't need them. Similarly you should delete the cover.jpg files if you also have copies of those on your SD card.