Yeah, oddly enough, it's perfectly normal. I would've thought that the green LED should be constantly on whilst burning, and not pulsating, and completely off when there's no disc activity. Oh well, can't complain though, since it's giving me glorious burns
That's an excellent burn you've got there. AFAIK, that firmware you're currently using doesn't have a write strategy for RICOHJPNR01; so what strategy did you using to achieve those results?