Has anyone had experience connecting two ATAPI optical drives operating at significantly different UDMA modes to the same IDE controller?
I currently have a Plextor PX-W4824 CD-R/RW and a Toshiba SD-M1712 DVD-ROM operating on my ASUS P4C800-E Deluxe secondary IDE controller. Both drives are UDMA mode 2, set up as master and slave, respectively, and have worked together on one controller with absolutely no problems for years. An Optiarc AD-7170 DVD-R/RW is UDMA mode 4, set up as master alone on the primary IDE controller and I’d like to keep it that way. I want to replace the Toshiba with an ASUS DVD-E616A2 DVD-ROM that’s supposed to be capable of UDMA mode 5 (ATA100) for a little faster ripping speed.
Please don’t suggest that I flash my Toshiba with firmware that removes the so-called Riplock. Tried that once. Worked great until I ran into some badly manufactured discs (one of which was an ATI video card OEM driver CD). I thought it would destroy my drive before I could stop the process! Now I know the purpose of “Riplock” - and it’s not to discourage people from ripping discs. It’s to protect the hardware!
The question is - Will I have any problems with two ATAPI optical drives operating at UDMA2 and UDMA5 on the same IDE controller? Will the slower drive drag down the performance of the faster drive? I know this used to be an issue, at least with ATA HDD and ATAPI ODD on the same controller, but I’m not sure that modern IDE controllers don’t let each drive operate at it’s maximum speed like SCSI controllers. Any thoughts on this?