I got this drive, and burned some normal xvid files onto a ridata 4x dvd+r disc. One of the files turned out to be different than the original file, using a crc checker, but it seems that the kprobe scan is fine. I'm not too worried, since the files still play even with a little bit of an error in them, but just wondering why it would burn different data onto the disc. I don't know whether to consider this a bad burn or not.
Don't have anywhere to put the kprobe scan, but here's the results
scanned with the dru710a, by03 firmware
Disc: DVD+R RICOHJPNR01
PI Max=11, Average=1.06, Total=18234
PIF Max=2, Average=0.07, Total=1197