User Guide

ASUS DVD-ROM Drive User’s Manual 9
III. SOFTWARE INSTALLATION
III. S/W INST ALLATION
DOS/Windows/Others
Custom Setup
Choose the custom setup option to customize installation settings, such as the target
directory for the driver and installation files, and special settings.
To take advantage of the special settings to fully use your drive’s capability, high-
light Transfer Mode under the Custom Setup dialog box and then press [Enter].
The different transfer mode options will be displayed:
• PIO Mode or Programmed Input/Output Mode is the most common way computers trans-
fer data to and from the disk drive. PIO Mode 4, which is the mode installed, differs only
from the standard PIO transfer in how often the drive issues interrupts. In PIO Mode 4, each
interrupt indicates the drive is ready for 4 sectors of data (read) or has completed the trans-
fer of 4 sectors of data (write), compared with the one interrupt required in standard PIO for
each sector. This eliminates some of the system overhead involved in a PIO transfer.
• Multi-word DMA Mode or Multi-word Direct Memory Access Mode is used in EISA-
, VESA Local Bus-, and PCI-equipped systems. This mode is capable of very fast trans-
fer rates using Bus Mastering. The advantage of using the Bus Master DMA is that it uses
less CPU resources than PIO and therefore, it is useful in multitasking environments,
where the CPU can work on a different program while data is transferred to or from the
hard disk drive, or in your case, your DVD-ROM Drive.
• Ultra DMA Mode, also known as Ultra-ATA (ATA is the “official” name for what the com-
puter industry calls IDE or Integrated Drive Electronics) or Ultra-DMA/33, is the latest ad-
vancements to the ATA specifications. Ultra-DMA, among others, almost doubles the maxi-
mum transfer speed of the ATA-3 standard and improves data integrity.
NOTE: These special settings require that you have a motherboard or install an adapter
that supports either or all of these modes.
files will be updated with the following entered (depending on the OS installed in
your computer; the following are for DOS or Windows 95):
AUTOEXEC.BAT: C:\DOS\MSCDEX.EXE /D:ASUSCD01
CONFIG.SYS: DEVICE=C:\ASUS_CD\ASUSCD.SYS /D:ASUSCD01
LASTDRIVE=Z
Windows 9x/Windows NT
If your DVD-ROM Drive is already installed, Windows 9x or Windows NT will
automatically detect it and determine the appropriate settings for the drive and in-
stall or load the correct driver.
OS/2 and Other Operating Systems
Your DVD-ROM Drive supports the ATAPI drive interface. Your system should be able
to automatically detect your DVD-ROM Drive and load the appropriate device driver.