T2150 Series
1.6 CD-ROM Drive
The T2150 series internal CD-ROM drive accommodates either 12 cm (4.72") or 8 cm
(3.15") CDs. It provides high-performance, double-speed play (reads 300KB per second).
This drive supports the following formats:
Audio CD
Photo CD
ISO 9660
The T2150 series CD-ROM drive is shown is figure 1-6. The specifications for the CD-ROM
drive are described in table 1-3.
Figure 1-6 CD-ROM
Table 1-3 CD-ROM specifications
Item 1X mode 2X mode
Data capacity (bytes/block)
Mode 1 2,048
Mode 2 2,336
Transfer Rate
Sustained Block transfer speed (blocks/s) 75 150
Sustained Data transfer speed (kbytes/s) 150 300
Mode 1 150 300
Mode 2 171 342
ATAPI Burst (Mbytes/s) 3.33 (PIO mode 0)
Access time (ms)
Average Random Access 360 265
Average Random Seek 250 210
Average Full Stroke Access 540 450
Rotation speed (rpm) 200 to 530 400 to 1,060
Data Buffer Capacity (Kbytes) 128
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