As the title. Which drive is best to use to do a Blu Ray burn quality test? I see liteons recommended but those seem very expensive. The Samsung SH-B123L/RSBP is a lot cheaper than the iHES208/iHES108 so is that worth considering? Are these Blu Ray quality tests that some people do worth anything? I have read some people say they are not. I would like to know whether the disks I purchase are ...

my drive is having problems reading some dvds which seem to be dvd 9 (dual layer). it reads dvd 5 fine. so i tryed looking for firmware for the DH20A1H and cant find it anywhere. i was hoping someone can help. the version now is 5 X 11