Free Mac VLC Player？
VLC Media player offers a number of tools and customization options to manage and watch video. Users get frame-by-frame advancement; granular speed controls allowing for on-the-fly slower or faster playback; and live recording of streaming video. The toolbars are fully customizable, so you can have only the buttons you need in the interface.
This version comes with improvements to the interface, support for MxPEG files and streaming, and more. Along with minor tweaks, VLC continues to offer robust support for a wide range of video and audio formats, including OGG, MP2, MP3, MP4, DivX, HD codecs like AES3, Raw Dirac, and even support for playing back zipped files. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network.
The default interface was improved in recent updates, but integrated skinning can make it even better. Behavior can still be a bit unpredictable depending on the quality of the skin, but VLC's open-source foundation and community ensures that it evolves quickly and often, with new features and fixes released frequently.
Overall, VLC Media Player is a must-have application for its ability to open just about any type of video file you throw at it, making it a great option for Mac users having trouble playing certain file types.