Acer 250 manual Combo Drive Interface

DVD-ROM Interface

Item	Specification
Applicable disc format	DVD: DVD-5, DVD-9, DVD-10, DVD-R (3.95G), DVD-RAM (2.6G), DVD-
	RAM (4.7G)
	CD: CD-Audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form
	1 and form 2), CD-I (mode 2, form 1 and form 2), CD-I Ready, CD-I Bridge,
	CD-WO, CD-RW, Photo CD, Video CD, Enhanced Music CD, CD-TEXT
Loading mechanism	Soft eject (with emergency eject hole)
Power Requirement
Input Voltage	+5V[DC]+/-5%

(*1) Average of Data read over the whole area from 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block more than 2000 times including latency and layered error correction time.

(*2) From 00 min. 02 sec. 00 block to 59 min. 58 sec. 74 block including latency and layered error correction time.

(*3) Disc: MNSU-005

(*4) Average of Data read over the whole area from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F), more than 2000 times including latency and layered error correction time.

(*5) from starting data recorded area (LBA:0) to maximum data recorded area (LBA:23197F) including latency and layered error correction time.

(*6) Disk: MKE-D551.

(*7) Average of Data read over the whole area from starting data recorded area (LBA:0) to maximum data recorded area (LBA:3FA0DF), more than 2000 times including latency and layered error correction time.

(*8) from starting data recorded area (LBA:0) to maximum data recorded area (LBA:3FA0DF) including latency and layered error correction time.

(*9) Disk: ODSC-PARA

Combo Drive Interface

Item		Specification
Vendor & model name	KME UJDA740
Performance Specification
Transfer rate (KB/sec)	Read Sustained:
	DVD-ROM MAX 8X CAV (MAX 10800 KB/sec)
	CD-ROM	MAX 24X CAV (MAX 3600 KB/sec)
	Write:
	CD-R	4X, 8X (CLV), Max 16X, MAX 24X (ZCLV)
	CD-RW	4X (CLV)
	HS-RW	4X,8X, 10X (CLV)
	ATAPI Interface:
	PIO mode 16.6 MB/sec :PIO Mode 4
	DMA mode 16.6 MB/sec:Multi word mode 2
	Ultra DMA mode 33.3MB/sec: Ultra DMA mode 2
Buffer rate	2MB
Access time	DVD-ROM 180 ms typ. (1/3 stroke)
	CD-ROM 130 ms typ. (1/3 stroke)
Start up time	less than 15s
Stop time	less than 6s
Acoustic noise	less than 50 dBA
Interface	Enhanced IDE (ATAPI) compatible
Master/Slave	Set by Cable Select (By host)
PC compatible	PC2001 compatible

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