I received an email the other day, which went like this:
I have fixed this problem by editing the ltd 163 firmware and flashing it in
Now eveything works fine
Use a hex editor on the firmware updater and replace the firts instance of LTD163 to LTD163D
next, change the firmware version string to the version just before the old firmware
so : change GH5K to GHR2
then flash the firmware in..
Problem is, I don't know for sure if the 163D will work with the 163 firmware. Anyone tried? The problem I had was with the 163D not reading some DVDRs, and I'm eager to see if this will work.