With the new beta version BDP10X-50-0323B, Oppo said: "The new decoder firmware supplied by our chip vendor tightens the validation check for AVCHD file format. If the files in the BDMV folder do not fully comply with the AVCHD specification, the folder will not play. (For example, if the files are from a disc backup instead of an original AVCHD recording, the player will reject it.)" I have a couple of questions: 1. If I make a backup copy using DVDFab (Full disc copy) on a hard disk, will Oppo play this BD structure? 2. If I demux Blu Ray movie (m2ts file from BDMV/STREAM folder) using TSMuxer, add subtitle (SRT file) and then create Blu Ray structure on a hard disk using MultiAVCHD software, will Oppo play this structure? With official version BDP10X-38-1220, the above work fine.