I have EXACUTELY the same problem like Sterlock did (http://club.cdfreaks.com/showthread.php?t=203829)… I just bot a Sony NEC Optiarc 7630A (it’s been recognised as Optiarc) drive and placed on a Toshiba M40-184 nb. BIOS doesn’t see it at all, although w2k3 see it and can use it. The big prob is that if i deside to change OS then… !!! i cannot BOOT from 7630A !!!
What can we do about it???
Please help… because the other solution i have is to buy the Mathita UJ831S (the original M40 drive) that cost 272Euro + 19% (VAT) !!!