I have a Sony DVD RW DRU-845S with an original firmware of SS00 and it's equivalent to SAMSUNG's SH-203N. This model doesn't have any firmware update at all so I was hoping to crossflash it into SH-203N. I want to set a permanent booktype and make it a region-free drive. I'm hoping that you guys can help me with a working flash utility (Sony -> Samsung). I'm aware of all the risks. Thank you.