|"I changed the BIOS boot sequence to boot from CD first."|
That does not necessarily have to be listed first, it just has to be before any hard drive or SCSI, or in older bioses, before any hard drive partition drive letter . When a floppy drive is installed, it should be listed before the CD drive.
"I just got a dvd drive.."
New or used ?
"It doesnot read any data file from the windows 2000, it only reads audio cd."
There is no software or normal hardware problem that would cause that situation.
The disk should be clean and free of major scratches .
Optical drives vary in their ability to read scratched disks. E.g. LG drives aren't good at that.
If you can read the files on the 2000 CD but the computer won't boot from the CD, or in any case, if it's a used drive, try using a laser lens cleaning CD in the drive.
If you don't have one, most places that sell CDs and DVDs have them, and even some "dollar" stores have them for a buck or two
If the CD is a copy, a CD-R disk should read fine in any drive, or a DVD-R should read fine in any drive that can read DVDs , but other types of burnable disks may not read fine in a drive they were not made in.
E.g. I had problems with reading 2000 on a CD-RW disk in some drives.
If the copy is on a DVD
- of course, a CD - only - drive cannot read it.
- a DVD combo drive (that can burn and read both CDs and DVDs) has at least two lasers and associated circuits - sometimes one of them malfunctions after the drive has been used a lot - in that case the drive would read either no CDs at all or no DVDs at all.
A CD burner drive (can't read or burn DVDs) may have two lasers and associated circuits.
If you have two or more optical drives connected, many bioses will boot from only one of them. In that case,
- try the disk in another drive if the drive can read the disk,
- or - go into the bios Setup and
- find the list of hard drives - it's usually near the boot order or similar setting - and make the optical drive you want to boot from the first one in the list
- or - less often - the boot order or similar list may have more than one hard drive listed - make the optical drive you want to boot from the first one in the list .
"If the new DVD drive is a SATA type make sure that you have it connected to a bootable port (some may not be bootable) and the controller is enabled in the BIOS."
Early mboards that had SATA support built in may have some SATA headers you can boot a hard or a bootable disk in an optical drive connected to it from, and other headers that don't have that ability.
The two types of headers may be different colors, or not. The first numbered SATA headers you could / can boot from. If you have a generic system, the info about that is stated in the mboard model's manual.