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When I use Quick Look in the Finder to preview an mp4 I would prefer if the videos looped over and over instead of stopping at the end, because the play back button is really tiny and hard to click. Pressing space twice again works but is terribly jarring. Is there a setting to change the playback behaviour?
Just use the spacebar twice as you mentioned. There might be a setting or flag you could tweak in the Terminal. I don't know of one. – Joshua Dance – 2014-05-12T14:48:33.907