My DW1620 just stopped working one day so I bought a DW1640 and 100 CMC MAG AE1 8x -R.
My 1620 loved the CMC discs and could burn them at 12x however, my 1640 hates them and only burns them at 4x max.
Is it possible to flash my 1640(BSOB) to a 1620 (B7P9).
I know CMCs are not the best media but I find that they work in all my DVD players including my old PS2.
I wish my 1620 still worked