Toshiba PORTEGE M400 - Manual (Page 160)

3 Tests and Diagnostics 3.18 CD-ROM/DVD-ROM Test
3-42 [CONFIDENTIAL] PORTEGE M400 Maintenance Manual (960-541)
3.18 CD-ROM/DVD-ROM Test
To execute the CD-ROM/DVD-ROM test, select 12 from the DIAGNOSTICS TEST
MENU, press Enter and follow the directions on the screen.
NOTE: For the subtest 01, 02 and 03, use the TOSHIBA CD-ROM TEST DISK TDY-01
or ABEX TEST CD-ROM TCDR-702 and DVD-ROM TEST DISK TSD-1. For the
subtest 04, use a CD-RW media on the market.
Subtest 01 Sequential read
This subtest is a sequential reading of one-block units (2K bytes) of all the
logical addresses.
Subtest 02 Read specified address
This subtest reads one-block data from a specified address.
Subtest 03 Random address/data
This subtest reads one-block data and multi-block data from random addresses
200 times.
Subtest 04 RW 1point W/R/C
This subtest writes, reads and compares data at one point on a CD-RW media.