I agree with John F, before being NoDrm, at Apprentice Alf's hands, there was a bat file to do the same than the plugin. Yes, you can find one enhanced DRM at some place (at this moment, I think there is more or less the same chance of finding one than me winning lottery without playing) and, for that case, your alternative is calibre. But in everyday work, I think that's the best option if you don't want to use calibre.
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