two things:
1-that yamaha drive is not on the device support list for disaster recovery,
it may not work in your time of need
2-that scsi card does not use any of the aspi (dos level) drivers you have
listed, i know i have that same card, contact adaptec because i forgot which
one it uses...this can be proven, try making a win98 boot floppy and see if
it will load a driver for the won't...good luck