I need some help.

I have an Asus 915G chipset P4 board with some SATA connections on it and a couple IDE ports also. I have my main bootup hard drive connected to the Primary PCI and another older IDE Plextor drive connected to the other one. Works great.

I tried to add an Asus DRW-1814 SATA drive to the machine and the operating system (win XP pro) added the drive just fine.

The next steps here are all for troubleshooting....
I use AnyDVD and CloneDVD. Been using them for over a year now and have been wonderful.
I can insert a retail DVD into the Asus drive and rip the DVD to the hard drive. Works great, quiet drive too. But when I goto try and write the data with the Asus drive is where I'm having problems. CloneDVD comes back with some error not enough space DW14 error or something. The Asus drive just will not write, and I've used multiple media brands also.
To test further, I unhooked the new Asus drive and stuck an older Plextor 716a in there (SATA connection also). I went to clone DVD and tried to write the data and it worked just fine.

What is wrong with this ASUS drive? Should I just give up on ASUS and stick with Plextor which seem to work all the time.
Also the lady at ZipZoom (usually where I get my stuff) said the ASUS was an optical drive....yea I know SATA, right? And my Plextor 716a is an optical drive too...right?

Anyone have any kind of suggestions here or which way to go? Even when you purchase OEM products with ZipZoom they still charge you a re-stocking fee....watch out.