:iagree: BCDC = peace of mind
no firmware seems to have universal superior performance for all users.
Correct, but I'd like to stress that BCDC is the only firmware with a correct OPC operation for CMC MAG E01. - and that BCHC has annoying bugs.
In terms of low-level quality, BCIC would have been a winner for me, but as it has broken OPC operation for E01s, until I have no more of these blanks I stick with BCDC, and frankly I can't complaint, my two 1650 units are producing great burns everytime (except with RW media - for these my NECs are excellent).