Yes, if 640x384@30fps and 600kbps is what you need, then I'm not sure if this device is for you. I've heard 352x288@25fps/400kbps (with 128kbit for audio) was the upper limit on the 770 (never tested it myself - too much wasted space on the RS-MMC); it's probably a bit higher on the N800, but not anywhere near your requirements.