i bought new samsung 32 gb memory card.when i transfered some videos and tried to play it...it showing can't play this file..h

Solution
Try using a different video player. Some video players, particularly the default ones that come installed in most Android phones, do not read from SD cards very well. If it's a simple matter of video compatibility, try MX Player, which will play just about anything you throw at it.
Try using a different video player. Some video players, particularly the default ones that come installed in most Android phones, do not read from SD cards very well. If it's a simple matter of video compatibility, try MX Player, which will play just about anything you throw at it.
 
Solution