Hi Michael, I couldn't find the 223c in stock in any UK websites, so I ordered the 223B yesterday. I don't understand what is the difference between the B and C variants, according to the Samsung ODD website they share the exact same specs. Both variants are available as OEM/BULK, so the naming convention shouldn't denote the difference between retail and OEM/BULK models. Do you know if they are identical hardware-wise, e.g same chipset? Thanks in advance for any replies.