The last 2 movies I’ve watched, I have watched from the hard drive. Both times I experienced stuttering throughout the movie. Not constant but would have smooth playback for a while and then several seconds of stutter and then stop and then a while later would do it again. Today I decided to chech cpu usage and it was in the 50’s and sometimes saw it jump up in the 70’s. I thought the stuttering was because of something to do with PDVD 11, but I guess now I know it’s something to do with the high cpu usage. I thought my 6570 was not working correctly. Out of curiousity I put the disc of Transformers 3. In the same scene cpu usage was around 10%. So a bluray ISO has high cpu usage and the actual bluray disc plays as it should. Any ideas why this is? I believe I have heard of this before. I use Virtual Clone Drive to mount images.
.
