Quote:
Originally Posted by pypeke
Does ACSM mean that is the file for a PocketBook book?
Amazon is KFX or AZW3?
Nook is epub?
Does that mean a Kobo book is a kepub?
Trying to figure everything out, but I am guessing.
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The ACSM file is what allows you to download the ePub book from an Adobe server. With Nooks and Kobos that process is normally handled by them when they deliver the book directly to their eReaders. But if you download the book from Kobo or Barnes & Noble (via your computer) you can still get ACSM files as well. (Doing this with Barnes & Noble is convoluted, but it can be done.) If you get the book from a place like eBooks.com or Google, you'll download the ACSM file. On your computer you can use Adobe ADE to download the actual ePub book (if you're not using Linux, there is no ADE for Linux). PocketBook and (I believe) Tolino allow you to bypass ADE (on your computer) because they have it built-in into their eReaders. Sony used to do this as well, years ago, but their certifications weren't updated and that feature is no longer available.
I believe Amazon uses their own system for DRM protection.
Kobo can use ePub. KePub is just their "enhanced" ePub. I believe you can change the extension to ePub and use their books on other eReaders. (if the DRM protection is disabled.) PocketBooks actually have two readers built-in. One for ePub 2 and one for ePub 3, which has some newer features. Normally it's just handled automatically, but if you press and hold on the book cover, you can choose which reader software you would prefer. I believe PocketBook uses the most advanced ePub "engine" — RMDSK — in eReaders (but I don't know a lot about it). Kobo has gone with their own ePub enhancements (KePub) but can use standard ePub books as well. I think all eReaders (besides Kindles) work with ePubs
Sorry for rambling. I'm sure others can explain this more clearly than I have.