jainekaif
Frequent GEARhead
Joined: 20 Mar 2010
Posts: 39
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 Posted: Thu May 13, 2010 5:15 am Post subject:
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The principal purpose of multiple sessions is to allow additional data to be appended to a previously recorded disc. (Note that some older CD readers can read only the first session of a multisession disc.) A session is defined as a data section including lead-in, program data and lead-out. A CD-R recorder that supports multisession can write a disc that will have multiple sessions linked together so that any multisession supported CD reader can access the data, whether it was written in the first session or any other subsequent session. The "Orange Book" limits the number of sessions per disc to 99. In contrast, the data structure of a regular CD-ROM contains just one lead-in area and one lead-out area.
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