This Blu-ray release transfers both the original theatrical cut and the 2000 never before seen cut into 1080p for the first time. For a film from the 1970s, the look is impressive in HD. While wide shots contain noise, many close-ups and medium shots are pristine. Dirt and damage has been cleaned up almost completely. Details pop in things like fabrics. For the most part more details emerge in the brighter lit scenes. The picture problems are fleeting. Black levels are a bit inconsistent and some shots are soft.
As for the sound, the extended cut is presented in DTS-HD Master Audio 6.1 surround and the original cut is DTS-HD Master Audio 5.1 surround track. The soundscape was intended to mix the bombastic with moments of eerie silence. The LFE emphasizes the unearthly sound moments from furniture flying across the room and the unnatural voices that possess Regan. The 360 experience is nice as unsettling sounds emerge from the rear speakers than sweep across the room like an apparition. Like the picture transfer, most of the problems with canned or hollow sounds are most likely a result of the aging originals.