NEC 2500A -- 8X for + and -R,4* for + and - RW
and has hacked firmware for 4* media to 8X and unlock rip seedd and book type

even can change to 2510A dual lager burner(2.4X for DL)


Pioneer XLA,B had firmware to hacked to 8X for all + or -R media
ASus0804=pioneer 107D

In the future, hack firmware for pioneer 107D to dula layer may appeared( see-- www.rpc1.com--.forum--new firmware)