Just discovered today that my new p3p will play 4k videos right off the sd card on my Samsung un65ju6700 tv. I feel like I have finally arrived at the promised land. With my p3a, I couldn't find any solution to watch 2.7 video without converting them first in a computer, which works, but costs a joy draining 30 minutes to accomplish. After searching and learnIng way more than I wanted to know about codecs, I saw a message from alirz that said he could play 4k from his p3p but not 2.7k. So I tried it and it works. Be advised, use the 3.0 usb port on your tv and use a 3.0 usb extension cable. I also recommend the lexar 32 gb 633x sd card from Amazon. $12 including a 3.0 card/usb reader.