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Media Descriptor File
Media Descriptor File (MDF) is a proprietary disc image file format developed for Alcohol 120%, an optical disc authoring program. Daemon Tools, CDemu, MagicISO, PowerDVD, and WinCDEmu can also read the MDF format. A ''disc image'' is a computer file replica of the computer files and file system of an optical disc. Unlike an ISO image, a Media Descriptor File can contain multiple layers (as used in dual-layer recording) and multiple optical disc tracks. Like the IMG file format, a Media Descriptor File is a "raw" image of an optical disc. The word ''raw'' implies that the copy is precise, bit-for-bit, including (where appropriate) file-system metadata. A Media Descriptor File may be accompanied by a Media Descriptor Sidecar file. This optional binary file (with file extension .mds) contains metadata about an imaged optical disc, including a delineation of where disc layers begin and end ("layer breaks"), and which portions of the MDF belong in which disc layer. The M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disc Image
A disk image, in computing, is a computer file containing the contents and structure of a disk volume or of an entire data storage device, such as a hard disk drive, tape drive, floppy disk, optical disc, or USB flash drive. A disk image is usually made by creating a sector-by-sector copy of the source medium, thereby perfectly replicating the structure and contents of a storage device independent of the file system. Depending on the disk image format, a disk image may span one or more computer files. The file format may be an open standard, such as the ISO image format for optical disc images, or a disk image may be unique to a particular software application. The size of a disk image can be large because it contains the contents of an entire disk. To reduce storage requirements, if an imaging utility is filesystem-aware it can omit copying unused space, and it can compress the used space. History Disk images were originally (in the late 1960s) used for backup and disk clonin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IMG (file Format)
IMG, in computing, refers to binary files with the .img filename extension that store raw disk images of floppy disks, hard drives, and optical discs or a bitmap image – .img. Overview The .img filename extension is used by disk image files, which contain raw dumps of a magnetic disk or of an optical disc. Since a raw image consists of a sector-by-sector binary copy of the source medium, the actual format of the file contents will depend on the file system of the disk from which the image was created (such as a version of FAT). Raw disk images of optical media (such as CDs and DVDs) contain a raw image of all the tracks in a disc (which can include audio, data and video tracks). In the case of CD-ROMs and DVDs, these images usually include not only the data from each sector, but the control headers and error correction fields for each sector as well. Since IMG files hold no additional data beyond the disk contents, these files can only be automatically handled by prog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comparison Of Disc Image Software
This article is a comparison of notable software applications that can access or manipulate disk image files. It compares their disk image handling features. Comparison criteria This article compares two features: Supported file formats and capabilities of the software as to how they treat the image format. Capabilities ;Creates?: Specifies whether the application can create a new disc image file, either by capturing the image of an actual disc, by composing a disc image file from locally stored files or an empty disc image. ;Modifies?: Specifies whether the application is able to manipulate the contents of an existing disc image file, including adding, changing or deleting files within or modifying disc image metadata. ;Mounts?: Specifies whether the application can emulate an optical disc drive. Such an application treats a disc image file like a virtual disc and virtually inserts it into that emulated virtual drive. ;Writes/Burns?: Specifies whether the application can write ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixed Mode CD
A mixed mode CD is a Compact Disc which contains both data and audio in one session. Typically the first track is a data track while the rest are audio tracks. The most common use for mixed mode CDs is to add CD-quality audio to video games on a CD. The term "enhanced CD" is sometimes used to refer to mixed mode CDs, though it is most commonly used to refer to either a more general category of formats that mix audio and data tracks, or to the particular Enhanced Music CD format. Overview Mixed mode CDs are implicitly described in the original CD-ROM standard (the ''Yellow Book'', later standardized as ISO/IEC 10149 and ECMA-130), which allows a CD-ROM to contain only data tracks, or data tracks and audio tracks. The CD-ROM standard, however, does not mention the term "mixed mode", nor does it describe any particular order of data and audio tracks on the disc. Since the original CD-ROM standard did not support multiple sessions, mixed mode CDs are created using only one sessio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CloneCD
CloneCD is proprietary optical disc authoring software that makes exact, 1:1 copies of music and data CDs and DVDs, regardless of any Digital Rights Management (DRM) restrictions. It was originally written by Oliver Kastl and offered by Swiss company Elaborate Bytes, but due to changes in European copyright law, they were forced to take it off the market. The last version of CloneCD made by Elaborate Bytes was version 4.2.0.2. The software was subsequently sold by SlySoft, a company located in Antigua and Barbuda, whose legislation does not ban the circumvention of DRM schemes. Since 2016, it is sold by Belize/Latvia based RedFox. Region restrictions in older versions In older versions of "''CloneCD''," the features "''Amplify Weak Sectors''," "''Protected PC Games''," and "''Hide CDR Media''" were disabled in the United States of America and Japan. Changing the region and language settings in Windows (e. g. to Canadian English) and/or patches could unlock these features in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NRG (file Format)
An NRG file is a proprietary optical disc image file format originally created by Nero AG for the Nero Burning ROM utilitIt is used to store Disk image, disc images. Other than Nero Burning ROM, however, a variety of software titles can use these image files. For example, Alcohol 120%, or Daemon Tools can mount NRG files onto virtual drives for reading. Contrary to popular belief, NRG files are not ISO images with a .nrg extension and a header attached. They can store audio tracks for Audio CDs, which ISO images cannot. Nero's NRG format is one of the few formats besides BIN/CUE, Alcohol 120%'s MDF/MDS and CloneCD's CCD/IMG/SUB disc image formats to support Mixed Mode CDs which contain audio CD tracks as well as data tracks. File format The file format specification below is unofficial and as such is lacking some data. There may also be errors. The NRG file format uses a variation of the Interchange File Format (IFF) and stores data in a chain of "chunks". All i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nero Burning ROM
Nero Burning ROM, commonly called Nero, is an optical disc authoring program from Nero AG. The software is part of the Nero Multimedia Suite but is also available as a stand-alone product. It is used for burning and copying optical discs such as CDs, DVDs, Blu-rays. The program also supports label printing technologies LightScribe and LabelFlash and can be used to convert audio files into other audio formats. Name Nero Burning ROM is a pun in reference to Roman Emperor Nero, who was best known for his association in the Great Fire of Rome. The emperor allegedly fiddled while the city of Rome burned. Also, Rome in German is spelled Rom. The software's logo features a burning Colosseum, although this is an anachronism as it was not built until after Nero's death. Features Nero Burning ROM is only available for Microsoft Windows. A Linux-compatible version was available from 2005 to 2012, but it has since been discontinued. In newer versions, media can be added to compilations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Text File
A text file (sometimes spelled textfile; an old alternative name is flatfile) is a kind of computer file that is structured as a sequence of lines of electronic text. A text file exists stored as data within a computer file system. In operating systems such as CP/M and MS-DOS, where the operating system does not keep track of the file size in bytes, the end of a text file is denoted by placing one or more special characters, known as an end-of-file marker, as padding after the last line in a text file. On modern operating systems such as Microsoft Windows and Unix-like systems, text files do not contain any special EOF character, because file systems on those operating systems keep track of the file size in bytes. Most text files need to have end-of-line delimiters, which are done in a few different ways depending on operating system. Some operating systems with record-orientated file systems may not use new line delimiters and will primarily store text files with lines se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cue Sheet (computing)
A cue sheet, or cue file, is a metadata file which describes how the tracks of a CD or DVD are laid out. Cue sheets are stored as plain text files and commonly have a filename extension. CDRWIN first introduced cue sheets, which are now supported by many optical disc authoring applications and media players. Overview Cue sheets can describe many types of audio and data CDs. The main data (including audio) for a CD described by a cue sheet is stored in one or more files referenced by the cue sheet. Cue sheets also specify track lengths and CD-Text including track and disc titles and performers. They are especially useful when dividing audio stored in a single file into multiple songs or tracks. The data files referred to by the cue sheet may be audio files (commonly in MP3 or WAV format), or plain disc images, usually with a extension. When used for disc images, the format is usually called CUE/BIN, indicating that it stores a disc image composed of one cue sheet file and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CloneCD Control File
A CloneCD Control File is a text descriptor with the extension .ccd used by CloneCD to mark the properties of a CD/DVD image. These files need to be combined with an image file (usually with .img extension) to be burned. It may also come with a subchannel file (usually .sub). The .ccd extension can be used directly by first-party disc emulator Virtual CloneDrive. It can also be mounted with third-party virtual drives such as Daemon Tools and Alcohol 120%. The command line Linux application ccd2iso is available to convert ISO9660-compliant CCD/IMG files to an ISO image. The GNU Project's ccd2cue can convert a CCD file to a cue sheet. The CUE/BIN and MDS/MDF formats have a similar structure to the CCD/IMG format, containing both a raw disc image along with a descriptor file. The CloneCD CCD/IMG/SUB format is one of the few formats besides Nero's NRG, BIN/CUE and Alcohol 120%'s MDF/MDS disc image formats to support Mixed Mode CDs which contain audio CD tracks as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CD/DVD Copy Protection
CD/DVD copy protection is a blanket term for various methods of copy protection for CDs and DVDs. Such methods include DRM, CD-checks, Dummy Files, illegal tables of contents, over-sizing or over-burning the CD, physical errors and bad sectors. Many protection schemes rely on breaking compliance with CD and DVD standards, leading to playback problems on some devices. Protection schemes rely on ''distinctive features'' that: *can be applied to a medium during the manufacturing process, so that a protected medium is distinguishable from an unprotected one. *cannot be faked, copied, or retroactively applied to an unprotected medium using typical hardware and software. Technology Filesystems / Dummy files Most CD-ROMs use the ISO9660 file system to organize the available storage space for use by a computer or player. This has the effect of establishing directories (i.e., folders) and files within those directories. Usually, the filesystem is modified to use extensions intended to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
File Extension
A filename extension, file name extension or file extension is a suffix to the name of a computer file (e.g., .txt, .docx, .md). The extension indicates a characteristic of the file contents or its intended use. A filename extension is typically delimited from the rest of the filename with a full stop (period), but in some systems it is separated with spaces. Other extension formats include dashes and/or underscores on early versions of Linux and some versions of IBM AIX. Some file systems implement filename extensions as a feature of the file system itself and may limit the length and format of the extension, while others treat filename extensions as part of the filename without special distinction. Usage Filename extensions may be considered a type of metadata. They are commonly used to imply information about the way data might be stored in the file. The exact definition, giving the criteria for deciding what part of the file name is its extension, belongs to the rules of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
