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Wednesday, October 19, 2016
Comparison of e-book formats
FictionBook (Fb2)
Format: FictionBook
Published as: .fb2
FictionBook[11] is a popular XML-based e-book format, supported by free readers such as FBReader, Okular, CoolReader, Bebook and STDU Viewer.
The FictionBook format does not specify the appearance of a document; instead, it describes its structure and semantics. All the ebook metadata, such as the author name, title, and publisher, is also present in the ebook file. Hence the format is convenient for automatic processing, indexing, and ebook collection management. This also is convenient to store books in it for later automatic conversion into other formats.
DAISY – ANSI/NISO Z39.86
Format: DAISY
Published as:
The Digital Accessible Information SYstem (DAISY) is an XML-based open standard maintained by the DAISY Consortium for people with print disabilities. DAISY has wide international support with features for multimedia, navigation and synchronization. A subset of the DAISY format has been adopted by law in the United States as the National Instructional Material Accessibility Standard (NIMAS), and K-12 textbooks and instructional materials are now required to be provided to students with disabilities.
DAISY is already aligned with the EPUB technical standard, and is expected to fully converge with its forthcoming EPUB3 revision.[3]
DjVu
Format: DjVu
Published as: .djvu
DjVu is a format specialized for storing scanned documents. It includes advanced compressors optimized for low-color images, such as text documents. Individual files may contain one or more pages. DjVu files cannot be re-flowed.
The contained page images are divided in separate layers (such as multi-color, low-resolution, background layer using lossy compression, and few-colors, high-resolution, tightly compressed foreground layer), each compressed in the best available method. The format is designed to decompress very quickly, even faster than vector-based formats.
The advantage of DjVu is that it is possible to take a high-resolution scan (300–400 DPI), good enough for both on-screen reading and printing, and store it very efficiently. Several dozens of 300 DPI black-and-white scans can be stored in less than a megabyte.
DOC
Format: Microsoft Word
Published as: .DOC
DOC is a document file format that is directly supported by few ebook readers. Its advantages as an ebook format is that it can be easily converted to other ebook formats and it can be reflowed. It can be easily edited.
Format: DAISY
Published as:
The Digital Accessible Information SYstem (DAISY) is an XML-based open standard maintained by the DAISY Consortium for people with print disabilities. DAISY has wide international support with features for multimedia, navigation and synchronization. A subset of the DAISY format has been adopted by law in the United States as the National Instructional Material Accessibility Standard (NIMAS), and K-12 textbooks and instructional materials are now required to be provided to students with disabilities.
DAISY is already aligned with the EPUB technical standard, and is expected to fully converge with its forthcoming EPUB3 revision.[3]
DjVu
Format: DjVu
Published as: .djvu
DjVu is a format specialized for storing scanned documents. It includes advanced compressors optimized for low-color images, such as text documents. Individual files may contain one or more pages. DjVu files cannot be re-flowed.
The contained page images are divided in separate layers (such as multi-color, low-resolution, background layer using lossy compression, and few-colors, high-resolution, tightly compressed foreground layer), each compressed in the best available method. The format is designed to decompress very quickly, even faster than vector-based formats.
The advantage of DjVu is that it is possible to take a high-resolution scan (300–400 DPI), good enough for both on-screen reading and printing, and store it very efficiently. Several dozens of 300 DPI black-and-white scans can be stored in less than a megabyte.
DOC
Format: Microsoft Word
Published as: .DOC
DOC is a document file format that is directly supported by few ebook readers. Its advantages as an ebook format is that it can be easily converted to other ebook formats and it can be reflowed. It can be easily edited.
Comparison of e-book formats
Broadband eBooks (BBeB)
Main article: BBeB
Format: Sony media
Published as: .lrf; .lrx
The digital book format originally used by Sony Corporation. It is a proprietary format, but some reader software for general-purpose computers, particularly under GNU/Linux (for example, Calibre's internal viewer[2]), have the capability to read it. The LRX file extension represents a DRM encrypted eBook. More recently, Sony has converted its books from BBeB to EPUB and is now issuing new titles in EPUB.
Comic Book Archive file
Main article: Comic book archive
Format: compressed images
Published as: .cbr (RAR); .cbz (ZIP); .cb7 (7z); .cbt (TAR); .cba (ACE)
Compiled HTML[edit]
Format: Microsoft Compiled HTML Help
Published as: .chm
CHM format is a proprietary format based on HTML. Multiple pages and embedded graphics are distributed along with metadata as a single compressed file. The indexing is both for keywords for full text search.
Main article: BBeB
Format: Sony media
Published as: .lrf; .lrx
The digital book format originally used by Sony Corporation. It is a proprietary format, but some reader software for general-purpose computers, particularly under GNU/Linux (for example, Calibre's internal viewer[2]), have the capability to read it. The LRX file extension represents a DRM encrypted eBook. More recently, Sony has converted its books from BBeB to EPUB and is now issuing new titles in EPUB.
Comic Book Archive file
Main article: Comic book archive
Format: compressed images
Published as: .cbr (RAR); .cbz (ZIP); .cb7 (7z); .cbt (TAR); .cba (ACE)
Compiled HTML[edit]
Format: Microsoft Compiled HTML Help
Published as: .chm
CHM format is a proprietary format based on HTML. Multiple pages and embedded graphics are distributed along with metadata as a single compressed file. The indexing is both for keywords for full text search.
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