IBM 48X manual Create

Average access time (including latency)	100 ms (20-48x, CAV)
Cache memory (Read/Write)	2 MB
Disc diameter	12 cm (4.7 in.) (8cm [3 in.])
Rotational speed (CD-ROM/CD-R)	9600 rpm
Mean time between failures (MTBF)	125 000 POH (duty 10%)
Buffer underrun protection	SuperLink® or SmartBURN®

The following table summarizes the CD format capabilities of the RecordNow program. Refer to the Sonic software online user’s guide for the most recent information on CD format capabilities.

		Create
Format	Copy capability	capability
CD-DA (Red Book)	Yes	Yes
CD+G	Yes	No
CD TEXT	Yes	Yes
CD-ROM (Yellow Book)	Yes	Yes
CD-ROM XA (Mode 2)	Yes	No
CD-I (Green Book)	Yes	No
CD-I Bridge	No	No
Video CD (White Book)	Yes	No
CD-R (Orange Book P II)	Yes	Yes
CD-RW (Orange Book P III)	Yes	Yes
Multisession CD	Yes	Yes
CD Extra (Blue Book)	Yes	No
Photo CD	Yes	No
Mixed-Mode CD	Yes	No
Bootable CD	Yes	No
Disc at Once	Yes	No
Track at Once	Yes	Yes
Session at Once	Yes	No

The CD-RW drive uses the following methods to write files to CDs:

vDisc at Once: The drive writes to the entire disc in a single pass; data cannot be added at a later time.

vTrack at Once: The drive copies one track at a time to the disc.

vMultisession: The drive writes several sessions to a disc; each session has at least one track.

Listed below are descriptions of different CD formats that appear in the table.

CD-Digital Audio: This format records audio CDs that can be played on audio CD players.

CD Extra: This format records audio and data in a multisession format.

Appendix A. Product specifications 15