i burnt s blu ray and it said it bunt fine. then when i was watching it on my home theater system towards the end of the movie it just froze up. so i reloaded it right in the same spot it froze again. so i burnt another copy and it played fine. this has happened like 4 times. it not the drive or the disc. so i think the dvdfab burn engine has something wrong with it. i was able to burn disc before without that many fails. also i would like to add what ever they change with dvdfab burn engine it takes a disc to load a long time. where was loaded up in about a min or more.