ATK Player Lite is a free video player on Mac OS X. It takes full advantage of OS X technologies such as OpenGL, Grand Central Dispatch, YUV direct rendering, Video Decode Acceleration and is fully optimized for 64-bit and multi-core processors to achieve smoothest video playback. Codecs ? Support most of audio, video codecs. ? Support lossless audios. ? Support many subtitle types: SRT, ASS, SSA, SMI, MicroDVD... ? Auto-detect subtitle encoding. Maximize entertainment ? Best image quality with Retina display (if available). ? Smoothest video playback. ? Stereo audio. ? Surround audio. ? Great 3D video playback. Users need a red-cyan, green-magenta or amber-blue glasses to watch 3D content. ? Beautiful audio visualization. Technologies ? Hardware video decoding if available. ? Multi-core video decoding. ? Low CPU usage. ? Low energy usage. ? Sleep or shutdown after playback. User interface ? Great flat UI. ? Yosemite UI style on OS X 10.7, 10.8 and 10.9. Limitation: ? ATK Player Lite can only play videos which dimensions are smaller than 1280x720. ? To play HD, Full HD, Quad HD & Ultra HD videos, please install ATK Player.