OK, so I got a PC using friend to give me their old copy of Nero 7 Premium, and now I’m up and running with the full Nero Burning ROM 18.104.22.168.
It definitely supports the CRW-F1, with everything exactly as described by Bob.
Before I went looking for an older copy of Nero 5/6/7, I tried testing a trial copy of Nero 9. Unfortunately, Nero 9 seems to have some sort of weird incompatibility with the CRW-F1UX, because it constantly crashed with a BSOD when trying to startup and communicate with my drive. There’s some kind of problematic interaction between Nero 9 and the Yamaha enclosure, related to the usbstor.sys driver. If the drive was turned off and I started Nero 9, no crashes. If the drive was turned on while Nero 9 was already loaded, or if the drive was already on before attempting to load Nero 9, crashing galore. No crashes occurred when Nero 9 tried talking to my Mapower GL811E enclosure.
And note that this problem was specific to Nero 9. No crashing or problems occurred with Nero 7 Premium or Express, and no crashing or problems occurred under OS X with Toast 8. I did not have the chance to test Nero 8.