The other DVD+-RW is the original Dell OEM Samsung (TSST) and I have NOT tried this
Actually I have TWO Dell WD 250's running RAID 1 (MIRROR). It came set at with RAID 0 (500 GB total, striped, NO mirror) and I RESEST IT ALL TO RAID 1, (lost everything) then I had to reload VISTA Home Premium from the very start, along with all other apps. etc.
I "read" your OTHER REPLY (url above) and on my 9150 (another Dell computer, also running RAID 1) I actually have that setting, primarilary because I really DO have a "combo" with two SATA 160 GB HD's and TWO LITE-ON (ATAPI-IDE) 165P6S's..... but on THIS particular XPS410/9200 I set it ONLY for SATA RAID and NOT the "ATA COMBO" setting as you did. I am afraid if I "changed" it NOW, all my data (and hours of hard work and tweaking) would be all lost. I am waiting for my WD 500 GB external HD and my Acronis True Image Home 10 Back-Up software (ordered from NewEgg) to arrive by this Tuesday.......... THEN I will make a COMPLETE SYSTEM IMAGE Back-Up and NOT be afraid to try that, but until I have a solid B.U. I will NEVER try to "experiment" again. I actually spent several hours doing "recovery" and re-setting" this morning, as the "crash" wiped out icons, re-arranged sidebar items, and lots of other funky stuff. VISTA is not stable enough YET to "play" with like this !!
To be 100% honest, I have not even had time enough today (helping Wife remove bathroom wallpaper, etc.) to even burn a DVD (or simple CD) with my new Plextor 755SA !! I have another (older Dell 4700) computer I just loaded Linux Ubuntu 6.10 on and I was "playing" with that !! :o