Formats: After conversions how do I know which was the original format?
After a couple of months I don't know which format was the source for all the others. I didn't see any info in the "edit metadata" dialog nor in the "Book Details display" on the right side of the main window.
I don't want to rely on the time stamps of the file system because they can be changed accidentally.
I read the manual and searched the forum but didn't find anything.
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