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A hard disk recorder (HDR) is a system that uses a high-capacity hard disk to record digital audio or digital video. Hard disk recording systems represent an alternative to reel-to-reel audio tape recording and video tape recorders , and provide non-linear editing capabilities unavailable using tape recorders.
MOD is used exclusively for standard definition video files, while TOD is used for high definition files. The first camcorders that used MOD format appeared in 2003. JVC introduced the Everio GZ-MG30, which recorded directly to an internal hard disk drive. Panasonic unveiled the SDR-S100, which recorded to SD cards.
Overburning is the process of recording data past the normal, vendor-specified size limit of the recordable media. Structures in the ATIP do not allow such sizes to be specified. Overburning may be used to determine the actual capacity limit of a recordable disc, since the capacity rated by recordable disc vendors merely is the guaranteed ...
An optical disk recorder encodes (also known as burning, since the dye layer is permanently burned) data onto a recordable CD-R, DVD-R, DVD+R, or BD-R disc (called a blank) by selectively heating (burning) parts of an organic dye layer with a laser.
Most DV and HDV camcorders can feed live DV stream over IEEE 1394 interface to an external file-based recorder. Video is stored either as native DIF bitstream or wrapped into an audio/video container such as AVI, QuickTime or MXF. DV-DIF is the raw form of DV video. The files usually have extensions *.dv or *.dif.
Optical disc authoring, including CD, DVD, and Blu-ray Disc authoring, is the process of assembling source material—video, audio or other data—into the proper logical volume format to then be recorded ("burned") onto an optical disc (typically a compact disc or DVD).
Those 74 minutes come from the maximum playtime that the Red Book (audio CD standard) specifies for a digital audio CD (CD-DA); although now, most recordable CDs can hold 80 minutes worth of data. The DVD and Blu-ray discs hold a higher capacity of data, so reading or writing those discs in the same 74-minute time-frame requires a higher 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 ...