Question for everybody who familiar with Blu-ray container. I just used v.7.0.3.5b for Main Movie to BD9, and noticed that output folder doesn't contained CERTIFICATE folder, only BDMV. Also, there only four sub-folders inside BDMV folder (it seems was more in a past). I burned it as is, and it plays OK. I burned another (using ImgBurn, add CERTIFICATE folder) and it plays also. What is significance of this folder than? I'm MKV guy, and don't know much about BR container - only essentials. Is anybody willing to share thoughts?