CD-ROM / CD-RW drives

My CD-Rom and CD-RW drives (h and i respectively)cannot read from a data disk ie: to install software (drive h) or to back up data to my CD-RW (drive i). Both, however, will automatically sence and begin to play audio disks.

Both will ask about downloading audio files from the net, etc.

I have “NERO” installed on my system, if tht is of any use to you. I am also running Windows 2000Pro.

Any detailed help would be appreciated. Thanks