VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, …) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network. VLC media player runs on multiple operating systems like Windows, Mac OS X, Linux, BeOS, etc. I am currently using it on my iMac. Once I have this installed, I do not need to install anything else because VLC comes with everything that I need to watch my movies and videos in any format. And VLC media player is free.
i can not open the vlc player on my mac,and i did it as the instruction.