1 Hardware Overview 1.5 DVD-ROM Drive
1-14 TECRA S1 Maintenance Manual
1.5 CD-ROM Drive The CD-ROM drive accepts 12-cm (4.72-inch) and 8-cm (3.15-inch) discs. The drive
provides high-speed data transfer at up to 24x.
The CD-ROM drive is shown in Figure 1-6 and its specifications are listed in Table 1-3.
Figure 1-6 CD-ROM drive
Table 1-3 CD-ROM drive specifications
Item 24× mode (Max.)
Data transfer rate (Mbytes/s) 33.3 (U-DMA transfer mode 2)
Access time (ms)
Average random access
Average full stroke access
110 (Typ.)
240 (Typ.)
Rotational speed (RPM) 5,136
Data buffer size (Kbytes) 128
Formats supported CD-DA, CD-ROM, CD-R, CD-ROM XA, CD-I
FMV, Photo CD (Multisession) , VIDEO CD,
CD Extra (CD Plus), CD-G, CD-RW