Some terminology for e-book readers

As Promised the teminology for e-book readers as to file formats:
Some Terminology you might want to be familiar with when looking at E-readers
BBeB (for Broad Band eBook) is a proprietary eBook file format developed by Sony. Although initially designed for the Sony Reader, it is also supported by other e-book readers.[1] BBeB files have the extension LRF. (From wikipedia)

EPUB (electronic publication) is an e-book standard, by the International Digital Publishing Forum (IDPF), which consists of three file format standards (files have the extension .epub), described below. It supersedes the Open eBook standard.

AZW, probably standing for Amazon Whispernet, is an eBook format used exclusively on the Amazon Kindle. It is basically the MOBI format using the high compression option. The AZW extension is used on eBook files that are protected with DRM and files that are not protected.

Portable Document Format (PDF) is a file format created by Adobe Systems in 1993 for document exchange. PDF is used for representing two-dimensional documents in a manner independent of the application software, hardware, and operating system.[1] Each PDF file encapsulates a complete description of a fixed-layout 2D document (and, with Acrobat 3D, embedded 3D documents) that includes the text, fonts, images, and 2D vector graphics which compose the documents.
Formerly a proprietary format, PDF was officially released as an open standard on July 1, 2008, and published by the International Organization for Standardization as ISO/IEC 32000-1:2008.[3][clarification needed]

TXT A text file (sometimes spelled "textfile": an old alternate name is "flatfile") is a kind of computer file that is structured as a sequence of lines. A text file exists within a computer file system. The end of a text file is often denoted by placing one or more special characters, known as an end-of-file marker, after the last line in a text file.
"Text file" refers to a type of container, while plain text refers to a type of content. Text files can contain plain text, but they are not limited to such.

Audible's .aa file format encapsulates sound encoded in either MP3 or the ACELP speech codec, but includes unauthorized playback prevention by means of an Audible user name and password, which can be used on up to three computers at a time. Licenses are available for schools and libraries. Audible's software does enable users to burn a limited number of CDs for unrestricted playback


MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players. MP3 is an audio-specific format that was designed by the Moving Picture Experts Group as part of its MPEG-1 standard
.mobi (also known informally as dotMobi) is a top-level domain (TLD) approved by ICANN on 11 July 2005 and managed by the mTLD global registry[citation needed] dedicated to delivering the Internet to mobile devices via the Mobile Web. It is financially backed and sponsored by Google, Microsoft, Nokia, Samsung, Ericsson, Vodafone, T-Mobile, Telefónica Móviles, Telecom Italia Mobile, Orascom Telecom, GSM Association , Hutchison Whampoa, Syniverse Technologies, and Visa,

PRC- formats for palm readers.

HTML- Hyper text markup language

DOC- Microsoft text

RTF- Rich Text Format

In computing, JPEG is a commonly used method of compression for photographic images. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality.

The Graphics Interchange Format (GIF) is a bitmap image format that was introduced by CompuServe in 1987 and has since come into widespread usage on the World Wide Web due to its wide support and portability.
Portable Network Graphics (PNG) is a bitmapped image format that employs lossless data compression. PNG was created to improve upon and replace GIF (Graphics Interchange Format) as an image-file format not requiring a patent license. It is spelled out as P-N-G. The

PNG acronym is optionally recursive, unofficially standing for “PNG's Not GIF”.[2]

BNB- The only application I could connect with this is doing higher order of engineering mathematics.

If you want to go in GREATER depth may I refer you to Wikipedia. Warning it becomes detailed very quickly in programming language very fast. For our purposes as end-users, a basic understanding of what the different formats is what you need to know to make a decision on a e-reader. If you are going to use it for work (receive files from clients or co-workers, you will recognize the formats that you use most frequently.
I obtained my information from Wikipedia .com on September 29, 2009