Quote:
Originally Posted by rabidrobot
This conversion to itself business isn't a viable solution. If the only thing that did was write metadata, then it would be OK, but you are actually converting, so the result files may be quite different-
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There are dozens of different e-book formats. Some allow metadata to be stored in them, some don't. Some have to have the metadata written with 3rd party software that Calibre doesn't control, and which sometimes have bugs. Some book formats must be completely rewritten to change the metadata they store within.
In the final analysis, it is safest for Calibre to
not change the original book in its library unless the user specifically says to change it and takes responsibility for that change That's the way I want it to work. If you really want the metadata changed inside the book, then you have to do a format->same format conversion. That's how Calibre would have to do it if it wanted to do it automatically (which I don't want it to do). If you worry about the format->same format conversion screwing things up when done manually, think about how angry other users would be if it was done automatically and screwed up an original!
You are free to make a copy of your book, and do the format->same format conversion on the copy. That's how I do it.