I have a software for playing Blu-ray The Blu-ray - searched and drive for playing Blu-ray m2ts files and folders on your hard drive. This should to my Cor2Quad computer as smoothly run as on my two laptops, Lenovo R61 with a Core2Duo T8100 and my Acer 1825 PT with Intel GMA 4500HD graphics unit. After PowerDVD8 failed here in Blu-ray m2ts files and folders, individually often happening only this jerky and m2ts files without sound, I've tried TotalMedia. So far, every Blu-ray was of disk playable and always with sound, as m2ts files. From Blu-ray drive neither PowerDVD nor TotalMedia had problems. TotalMedia seems the graphics hardware that was supposed to relieve the CPU in HD video to use when playing hard drive, as opposed to PowerDVD. Unfortunately TotalMedia play with me from any MKV files. The (free,) Media Player Classic but does so smoothly and with sound. The VLC Media Player not. With these two programs, I am happy and satisfied. In my opinion, TotalMedia for playing Blu-ray or Blu-ray files (m2ts), the best program!