Maybe this bug has been reported before. With the latest nightly build, 50D can record MOV video as before (and they are playable on PC/Smart TV etc.) but still can't show it on the LCD screen through MLV player. I did necessary module loading but no success yet (maybe this is still the intended feature). HOWEVER, 50D can record RAW video and it CAN play it on the LCD screen (I just say WOOOW!). 50D is being able to make fantastic things after 7 years! Thank you ML people!
Issue #2290 invalid