A misunderstanding exists in understanding H264. Actually, H264 is not a video format but a video compression standard or a video codec, which must be in form of some video formats like MP4, MOV, AVI, MKV and etc. Basically, H264 produces the high quality at a lower bitrate, and as result, compresses full high-definition video into a smaller size. If you are vexed at being unable to play H264 videos, WonderFox HD Video Converter Factory Pro is really a good choice for you. It is integrated a comprehensive multimedia player with a multifunctional video converter. You can convert H264 to AVI, convert H264 to MP4, convert H264 files to other formats using it. Next, I will show you how to play H.264 video and how to play .264 files by H264 encoder.