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ATAPI: Difference between revisions
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Quoting [http://suif.stanford.edu/~csapuntz/ide.html The Guide to ATA/ATAPI documentation (stanford.edu)]
<blockquote>
''Hosts control ATAPI devices using SCSI command packets.'' The SCSI command packets are transported over the ATA interface, instead of the parallel SCSI bus. This cool hack is described in ATA/ATAPI-6.
The set of SCSI command packets applicable to all SCSI devices is described in the [ftp://ftp.t10.org/t10/drafts/spc/spc-r11a.pdf SCSI-3 Primary Commands PDF]. Again, ATAPI devices don't implement all of these, so it's best to consult the associated ATAPI spec for a device.
CD-ROM command packets were originally described in [http://suif.stanford.edu/~csapuntz/specs/INF-8020.PDF INF-8020 PDF]. This document contains many inaccuracies in its description of the ATA bus interface, so please double check any statements against ATA/ATAPI-6. (Unfortunately, some of those inaccuracies were implemented!)''
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