Acer X1700, X270 manual Optical Drive, Super Multi Specification

Optical Drive

Super Multi

Item	Specification
Vendor	HLDS	PLDS		Sony
Model name	GH-15F	DH-16A3S		AD-7203S
Drive type	Super Multi	DVD-ROM		Super Multi
Write Speed	—	—		DVD-R: 20x max. DVD
				+R: 20x max.
				DVD-RW: 6x max. DVD
				+RW: 8x max.
				DVD-R DL: 12x max.
				DVD +R9: 8x max.
				DVD-RAM: 12x max.
				CD-R: 48x max. CD-RW:
				32x max.
Read Speed	—	—		DVD: 16x max.
				CD: 48x max.
Data Transfer Rate	—	—		—
Access Time	—	—		DVD: 160 ms
				CD: 140 ms
Buffer Size	4 MB	4 MB		2 MB
Interface Type	Serial ATA	Serial ATA		Serial ATA
DVD-ROM
Item	Specification
Vendor	HLDS		PLDS
Model name	GDR-H20N		DH-16D2S
Drive type	DVD-ROM		DVD-ROM
Write Speed	—		—
Read Speed	CD-ROM Max 52x		CD-RAM 5x
			CD Max 48x
	DVD-ROM Max 16x
			DVD Max 16x
Data Transfer Rate	CD Max 7.8 Mbytes		—
	DVD Max 22.1 Mbytes
Access Time	(Random) CD 90 ms		CD 12 ms
			DVD 140 ms
	(Random) DVD 100 ms
	(Full) CD 140 ms		DVD-RAM 150 ms
	(Full) DVD 160 ms
Buffer Size	198KB with buffer under run prevention		198 KB
	technology
Interface Type	Serial ATA		Serial ATA

91 Appendix A