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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 ...
There are several kinds of tracks, and there is also a sub-track index for finding points within a track. [citation needed] Blu-ray discs can also be written in a sequential, session based mode modelled on CD and DVD. A Blu-ray "track" refer to the entire physical storage of a Blu-ray layer; the equivalent to tracks in CD sessions is called a ...
The commands usually apply either to the whole disc or to an individual track, depending on the particular command and the context. They may describe the layout of data to be written, or CD-Text . The original specification of the cue sheet syntax and semantics appears in the CDRWIN User Guide. [4] The standard commands are: [5]
Enhanced Music CD, also known as CD Extra or CD Plus, is a format that combines audio tracks and data tracks on the same disc by putting audio tracks in a first session and data in a second session. It was developed by Philips and Sony, and it is defined in the Blue Book .
CD-ROM drives are rated with a speed factor relative to music CDs. If a CD-ROM is read at the same rotational speed as an audio CD, the data transfer rate is 150 Kbyte/s, commonly called "1×" (with constant linear velocity, short "CLV"). At this data rate, the track moves along under the laser spot at about 1.2 m/s.
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Official Enhanced Compact Disc logo/trademark Enhanced Music Compact Disc logo/trademark Compact Disc Interactive logo/trademark. Enhanced CD is a certification mark of the Recording Industry Association of America for various technologies that combine audio and computer data for use in both compact disc and CD-ROM players.