Pioneer SCSI-2 User Manual

Page 104

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Read CD-ROM Capacity

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Support of Sub-channel data is optional. In the case of R-W the drive may return data de-

interleaved and error-corrected, RAW or padded with zeros depending on the R-W Supported

and R-W de-interleaved and error-corrected bits in the CD-ROM capabilities and mechanical

status page.

If the Starting Logical Block Address is set to FFFFFFFFh and the only information requested to

be placed in the data stream is the Sub-channel data and there is currently a PLAY AUDIO

command in process, the actual address used will be from the current location (of the Audio

play).

The number of bytes returned is based on which bits are set in the Data Selection Field.

The table on the opposite page allows you to calculate the number of bytes returned based on

which Data Selection field bits are set.

The CD-DA audio data includes 16bits of information for each channel, and will be formatted as

follows when an audio track is read. The First Channel is Left channel, and Right channel is

next.

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