FreeBSD 6.2 & 7.0 can't find & mount NEC AD-7170S SATA DVD-RW

[wiak]

FreeBSD 6.2/7.0 can't find & mount NEC AD-7170S SATA DVD+-RW
it boots FreeBSD right up to media > CD/DVD in sysinstall and fails to mount

*System*
Abit AT8 (ATI RD480+ULI 1575)
AMD Athlon 64 X2 3800+
OCZ EL DDR PC-4000 Gold GX XTC 2GB Dual Channel
PowerColor Radeon X1800 XT 512MB
1x WDC Raptor 74GB 10,000RPM, 16MB, NCQ, SATA 1.5Gp/s
2x Seagate Barracuda 7200.10 320GB, 7200RPM, 16MB, NCQ, SATA 3Gp/s
NEC AD-7170S SATA DVD+-RW (Sony-NEC Optiarc)
BenQ FP937s+ (8ms)
Realtek ALC882D (Dolby Digital Live)
Hiper Type-R 580W