Hello,
I have a problem with my dvd-rw MSI DR12-A (MS-8412A)…
first of all it starts on ATA-33 from bios but windows xp puts it on pio 4 mode… i’ve modified the registry (local machine> system…) so the dvd-rw start on udma 2 but when I put a dvd in drive windows automaticaly changes in to pio mode 
, I’ve tryed many types of windows (w/sp, sp1,sp2) but none of them worked. there are times when I remove the disc from the drive and the read/write led remains on ??? yesterday a even tryed it on linux but it crashed the system !!! I’ve asked somebody from tehnical support an said the the firmware is curupted or something like this… I can write dvds with the drive but only at 2x max because it’s limited on pio mode… so if any of u have a sugestion please write it to me 
…
if somebody has a firmware for this drive please let me know
10x 
Hi sk3l3t,
Nice To See You At This Forum Too 
On Which Port You Are Connected Your MSI Drive?
It Seems To Be A Problem, When Hard Disk & Your MSI Drive Are Connected At The Same Cable/Port (For Example Primary)…
When It’s True - Try UnPlug Your MSI Drive From Primary Port & Then PlugIt Into Secondary As Stand Alone On One Cable…
Dumax