How do I set booktype for Sony DRU-710A

I tried using omnipatcher but the “enable auto-bitsetting” option is greyed out when I load the firmware file “Sony.710A.BYX5.patched-cf-mcled.exe”

Any ideas? I need to change the booktype on my drive to burn as DVD-ROM

download the [B]stock[/B] version and apply the settings to it: http://codeguys.rpc1.org/firmwares.html#DRU-710A

auto-bitset wasn’t disabled in older op versions, a bug…?!