Samsung UN46ES7500F E-Manual page 531

Other Restriction
Video content will not play, or not play
N
correctly, if there is an error in the
content or the container.
Sound or video may not work if the
N
contents have a standard bit rate/frame
rate above the compatible Frame/sec
listed in the table above.
If the Index Table is in error, the Seek
N
(Jump) function is not supported.
When you play video over a network
N
connection, the video may not be played
smoothly.