Quote:
Originally Posted by weatherman
Interesting. I think mobi was an offshoot somehow of prc back in the day - maybe it was the encrypted version? I barely remember that whole scene. Those were the early days of ebooks, to be sure.
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A PRC file is simply a container - it can contain data in any format whatsoever. Mobipocket has always used a PRC container, but a PRC file doesn't have to contain data that's in Mobipocket format - it can contain anything at all. There's an 8-character "tag field" near the start of the file which says what type of data the file contains; for a Mobipocket book this contains the string "BOOKMOBI". You can see it if you open the file in Notepad or some other text editor.