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Old 02-09-2011, 03:59 PM   #17
Manichean
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Posts: 3,130
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Join Date: Feb 2008
Location: Germany
Device: Cybook Gen3
Quote:
Originally Posted by sadievan View Post
1. Does it just overwrite the current file or does it make another mobi file?
If a given output format already exists, Calibre overwrites the file. There can only be one entry per format per book.

Quote:
2. Is it ok to do a lot at once. Or should I convert in steps, so many files at a time. I have approx. 135 books in Calibre right now.
Calibre queues the conversions and works on them according to how many CPU Cores you've given it.
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