I found this excellent thread on the SB / HT / OS / OHT features:
I have decided to leave my setting at default for my LH-20A1H since I use mostly good quality Verbatim, TDK, etc. but the comment you made about OPC learning peaked my interest.
With just SB enabled and all other options disabled, will the LH20A1H / P drives still learn about new unknown media similar to other brand of drives?
Liteon documentation is very weak but the help screen in SmartBurn 3.1.16t is really good and suggests that Hypertuning is always active for unknown media and is "learning" the correct strategy for these.
Thanks for any insight.