The version is 5.1, Sorensoft Power Disc Lock, burn data on disc with lock on the fly. Features: Burn Data on Disc With Lock on the Fly . Ability to Make and Burn Normal and Protected Standard ISO File (*.iso) . Ability to Detect Illegal Copy (Anti Alcohol 120% , Clonecd ....) . Anti Extracting Data From Disc and ISO File (Anti IsoBuster ....)...