Samsung YP K5 is mp3 mp4 player. I use this player and feel sound effects and video quality is very good. Samsung YP has both features mp3 for music and mp4 for video plyer. Samsung YP is easy to use. All feature is user friendly means easy to operate. Samsung YP player is easy to move one place to onther beacuse it has portability. This player is expensive but its feature and smart look deserve it. Sound effects and quality of video is its main feature in compare to other. I suggest you guys if you wanna buy then you can without hesignation beacuse it has value for money.