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Encyclopedia > Optical disc recording modes
Optical disc authoring
Optical media types
Standards

In optical disc authoring, there are multiple modes for recording, including Disc-At-Once, Track-At-Once, and Session-At-Once. In computing, optical disc authoring, including CD authoring and DVD authoring, known often as burning, is the process of recording source material—video, audio or other data—onto an optical disc (compact disc or DVD). ... The optical lens of a compact disc drive. ... It has been suggested that ISO image be merged into this article or section. ... A CD recorder drive. ... Optical disc authoring software is computer software for authoring optical discs including CD-ROMs and DVDs. ... CD and DVD recorders for authoring optical discs such as CD-ROMs and DVDs have a history of various technologies. ... Packet writing is an optical disc recording technology used to allow writeable CD and DVD media to be used in a similar manner to a floppy disk. ... This article or section does not cite its references or sources. ... This article or section does not cite its references or sources. ... The CD-ROM (an abbreviation for Compact Disc Read-Only Memory (ROM)) is a non-volatile optical data storage medium using the same physical format as audio compact discs, readable by a computer with a CD-ROM drive. ... This article or section does not adequately cite its references or sources. ... Compact Disc ReWritable (CD-RW) is a rewritable optical disc format. ... See also IBMs VM operating system family, where minidisk refers to a logical unit of storage. ... DVD (commonly known as Digital Versatile Disc or Digital Video Disc) is an optical disc storage media format that can be used for data storage, including movies with high video and sound quality. ... A DVD+R disc The title given to this article is incorrect due to technical limitations. ... DVD-R DL (Dual Layer) (Also Known as DVD-R9) is a derivative of the DVD-R format standard. ... This article or section does not cite its references or sources. ... DVD+R DL (Double Layer), also known as DVD+R9, is a derivative of the DVD+R format created by the DVD+RW Alliance. ... The title given to this article is incorrect due to technical limitations. ... This article or section does not cite its references or sources. ... This article or section does not cite its references or sources. ... You can recognize a DVD-RAM immediately because visually there are lots of little rectangles distributed on the surface of the data carrier. ... A Blu-ray Disc (also called BD) is a high-density optical disc format for the storage of digital media, including high-definition video. ... This article or section does not adequately cite its references or sources. ... HD-DVD disc HD DVD (for High Density Digital Versatile Disc) is a digital optical media format which is being developed as one standard for high-definition DVD. HD DVD is similar to the competing Blu-ray Disc, which also uses the same CD sized (120 mm diameter) optical data... HD DVD-R is the writable disc variant of HD DVD, and is now currently available with a single-layer capacity of 15GB. Currently, HD DVD-R has slower write speeds than the competing BD-R format (1–2x vs 1–4x) and lower storage capacity. ... An example of proposed HD DVD-RAM media. ... Ultra Density Optical (UDO) is a next-generation optical disc format designed for high-density storage of high-definition video and data. ... A UMD The Universal Media Disc (UMD) is an optical disc medium developed by Sony for use on the PlayStation Portable. ... The Rainbow Books are a collection of standards defining the allowed formats of Compact Discs. ... ISO 9660, a standard published by the International Organization for Standardization, defines a file system for CD-ROM media. ... Joliet is the name of an extension to the ISO 9660 file system. ... The Rock Ridge Interchange Protocol (RRIP, IEEE P1282) is an extension to the ISO 9660 volume format which adds POSIX file system semantics. ... The Rock Ridge Interchange Protocol (RRIP, IEEE P1282) is an extension to the ISO 9660 volume format which adds POSIX file system semantics. ... The El Torito Bootable CD Specification is an extension to the ISO 9660 CD-ROM specification. ... Overview Apple Macintosh computers use the HFS (or HFS+) file system on hard disks, mainly. ... The Universal Disk Format (UDF) is a format specification of a file system for storing files on optical media. ... The Mount Rainier logo Mount Rainier is a format for re-writable optical discs which provides for packet writing and defect management. ... In computing, optical disc authoring, including CD authoring and DVD authoring, known often as burning, is the process of recording source material—video, audio or other data—onto an optical disc (compact disc or DVD). ...

Contents

CD Disc-At-Once

Disc-At-Once or DAO for CD-R media is a mode that masters the disc contents in one pass, rather than a track at a time as in Track At Once. DAO mode, unlike TAO mode, allows any amount of audio data (or no data at all) to be written in the "pre-gaps" between tracks. A master recording is an original recording, from which copies may be made. ... On a compact disc or a DVD, a track is a consecutive set of sectors on the disc containing a block of data. ...


One use of this technique, for example, is to burn track introductions to be played before each track starts. A CD player will generally display a negative time offset counting up to the next track when such pre-gap introductions play. Pre-gap audio before the first track of the CD makes it possible to burn an unnumbered, "hidden" audio track. This track can only be accessed by "rewinding" from the start of the first track, backwards into the pre-gap audio. The pregap on a Red Book audio CD is the portion of the audio track that precedes index 01 for a given track in the table of contents (TOC). ... The pregap on a Red Book audio CD is the portion of the audio track that precedes index 01 for a given track in the table of contents (TOC). ...


DAO recording is also the only way to write data to the unused R-W sub-channels. This allows for extended graphic and text features on an audio CD such as CD+G and CD Text. A CD+G (also known as CD+Graphics) is a special audio compact disc that contains graphics data in addition to the audio data on the disc. ... CD-TEXT is a extension of the standard Red Book Compact Disc specification, which allows to store additional text for each track on the disk. ...


CD Track-At-Once

Track-At-Once or TAO is a recording mode where the recording laser stops after each track is finished and two run-out blocks are written. One link block and four run-in blocks are written when the next track is recorded. TAO discs can have both data and audio at the same time. On a compact disc or a DVD, a track is a consecutive set of sectors on the disc containing a block of data. ...


DVD-R Disc At Once

Disc At Once recording for DVD-R media is a mode in which all data is written sequentially to the disc in one uninterrupted recording session. The on-disk contents result in a lead-in area, followed by the data, and closed by a lead-out area. The data is addressable in sectors of 2048 bytes each, with the first sector address being zero. There are no run-out blocks as in CD-R disc-at-once.


Session At Once

Session at Once recording allows multiple sessions to be recorded and finalized on a single disc. The resulting disc can be read by computer drives, but sessions after the first are generally not readable by CD Audio equipment. Finalizing an optical disc (the term is most frequently applied to DVD recordable media) is the process of writing out support data such as DVD menus, directory data, and the like to an optical disc in order to make it playable on a system other than the one it was...


See also

Packet writing is an optical disc recording technology used to allow writeable CD and DVD media to be used in a similar manner to a floppy disk. ...

External links

  • Mike Richter's page on writing modes
  • Understanding CD-R & CD-RW by Hugh Bennett


 

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