I would like to see what u people here think of this.
Looks like a tutorial on transplanting a DVD key.
Doesn't look like a very good one. They tell you to dump the RAM for no reason and the command they give to flash the modified firmware to the drive won't do anything (just flashes unused sector 0x9003F000!). The memdump commands are also missing the block size argument.
Not sure what the GDR.bin is that they refer to.
Edit: Just downloaded their GDR.bin. It's just a standard 0047 firmware. Nothing exciting I'm afraid.