Specifications
2-10 C156-E228-02EN
2.2.3 Specifications of disk Table 2.5 lists the disk specifications.
Table 2.5 Disk specifications
Item Specification
Reliability Read cycle >108
Erase/write/read cycle >106
Load/unload cycle 25,000
Archival life (in accordance with
acceleration test results) >10 years (*1)
Shelf life (in accordance with acceleration
test results) >10 years (*2)
Environmental
requirements Operating temperature 5 to 55°C
Operating relative humidity 3 to 85% RH (*3)
Storage temperature –20 to 55°C
Storage humidity 3 to 90% RH (*3)
*1 Archival life indicates the maximum period during which recorded
information can be read from a disk.
*2 Shelf life indicates the maximum period during which information can be
written to an unrecorded disk.
*3 Maximum wet bulb temperature = 29°C.
Note: Non-recommended disks, if used, must be subject to a compatibility check
by the customer.
(1) 128 MB media
The ISO/IEC10090 defines 128-MB media specification.
(2) 230 MB media
The ISO/IEC13963 defines 230-MB media specification.
(3) 540 MB/640 MB media
The ISO/IEC15041 defines 540 MB/640 MB media specification.
(4) 1.3 GB media
The Cherry Book version 1.0 defines 1.3 GB media specification.