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Cd-rom drive – Compaq AP500 User Manual

Page 143

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7-10

Physical and Operating Specifications

CD-ROM Drive

Table 7-9

32X Max Tray-Load CD-ROM Drive (IDE)

Disk

Diameter

12 cm

Capacity

Mode 1

Mode 2

540 MB

650 MB

Disk thickness

1.2 mm

Track pitch

1.6

µ

m

Performance

Access time

Random seek

Full stroke seek

<100 ms

<150 ms

Data transfer rate

Sustained

Burst

150 KB/s

2100 to 4800 KB/s (14x to 32x variable)

Bus rate

4.0 MB/s

Cache/buffer

128 KB/s

Start-up time

Single

Multisession

<7 s

<30 s

Stop-time

< 4 s

Error rates

Soft error

Hard error

Seek error

10-

9

10-

12

10-

6

Continued