Bluray playback fail

I have read that bluray files can be plaed on the hub, but i am having absolutely no success with this. When a file eventaully plays, it just stutters, freezes, pauses etc. Initially i thought it maybe as i have the file on the hubs internal drive, but have since tried the same files on an externall hdd and the problem still occurs. The files are ISO files, as stated they start to play after delay, but then just freeze, pause, stutter. I really want to be able to play my 3d iso’s or general bluray iso’s, any help greatly appreciated. My hub has the latest official firmware installed

Can you convert them to mt2 or mkv file? Mine plays fine on both files, the latter take up less space (11GB vs 45GB)