Toshiba M70 manual Hardware Overview Optical device Drives

1 Hardware Overview 1.4 Optical device Drives

1.4.2 DVD Super Multi drive supporting ±R Double Layer

The DVD Super Multi drive accepts 12-cm (4.72- inch) and 8-cm (3.15- inch) discs. At maximum, the drive can play back a DVD at 8x speed, read CD-ROM at 24x speed, and write CD-R at 24x speed and CD-RW at 4x speed or Ultra and High speed CD-RW at 10x speed and DVD-R at 8x speed and DVD-RW at 4x speed and DVD+R at 8x speed and DVD+RW at 4x speed and DVD- RAM at 3x speed and DVD+R DL at 2.4x speed and DVD-R DL at 2x speed.

The specifications of the DVD Super Multi Double Layer drive are listed in Table 1-4

Item		DVD-ROM mode	CD-ROM mode
Data transfer rate (Mbytes/s)		33.3 (U-DMA transfer mode 2)
		16.6 (PIO mode 4, Multiword DMA mode 2)
Access time (ms)		180	150
Average random access
Data buffer size (Mbytes)		2MB
		DVD:
		DVD-VIDEO, DVD-ROM, DVD-R (3.9G,4.7G), DVD-RW
		(Ver.1.1), DVD-RAM, DVD+R, DVD+RW, DVD+R DL,
Formats supported		DVD-R DL
		CD:
		CD-DA, CD-ROM, CD-R, CD-RW, CD-ROMXA,
		PhotoCD (muitiSession), Video CD, CD-Extra (CD+), CD-Text
Table 1-4	DVD Super Multi Double Layer drive specifications

1-14 [CONFIDENTIAL] Satellite M70 /Satellite Pro M70 Series Maintenance Manual