Significados de e-book formats em inglês

Just why do so many different e-book formats exist?

Converting e-book formats with calibre is simple and straightforward:

It is a container for e-book formats.

There are 28 e-book formats that can be put into the PDB container that I'm currently aware of.

Not all e-book formats support DRM and different e-book formats support different sets of privileges granted by the DRM.

Stanza supports most e-book formats, so if you buy a .mobi book, for example, you'll be able to read it.

It still cannot easily display standard PDF (Acrobat) files, nor can it utilize e-book formats other than Amazon's.

Not all e-book formats support the same formatting so layout details may be lost when converting from one format to another.

New E-book formats?Will Google Editions just be glorified Web pages that open up the opportunity for new and different ways to interact with books?

- - - Almost instant e-books: In just 15 minutes, publishers can convert a text file to all seven major e-book formats.