MPlayerX
MPlayerX is an open source project which aims to be the most powerful, beautiful, easy to use multimedia player on Mac OS X.
Warning
MPlayerX has been bundled with malwares, including adware. See the VirusTotal scan results at https://www.virustotal.com/en/file/6f1e9d7dc6b52af887b5e1bee6e0d0366345fb53c752ca23b98a9cf9b647fd49/analysis/1441451188/
Discontinued
Installer contains possible malware:
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=29897
MPlayerX is an open source project which aims to be the most powerful, beautiful, easy to use multimedia player on Mac OS X. MPlayerX is armed by FFmpeg and 
MPlayer, which means it could handle any media format in the world without extra plug-ins or codec packages. Additionally, MPlayerX is inspired by 
QuickTime Player, with a black interface and in-frame minimal controls. All of this helps users to focus on the contents, rather than software itself.
- Play almost any format of file or stream.
- Multi-touch. Control the player with your fingers.
- Intelligently detecting the encoding of the subtitles. No need for encoding conversion.
- Direct pass through. Connect, play, enjoy your home theater.
- Multi-monitor support. Wanna work while watching your collection? just drag and F.
- Apple Remote support. Watch your favorites in sofa, more comfortable.
-Automatically find the next episode. Enjoy the whole afternoon, with just one click.
- Forget where you stopped playing last time? MPlayerX won't.
- Youtube.com support: MPlayerX could stream youtube audio and video. Just input the URL of the webpage in youtube.com which you may find in the address bar of the web browser, MPlayerX will play it for you seamlessly.
MPlayer, which means it could handle any media format in the world without extra plug-ins or codec packages. Additionally, MPlayerX is inspired by 
QuickTime Player, with a black interface and in-frame minimal controls. All of this helps users to focus on the contents, rather than software itself.- Play almost any format of file or stream.
- Multi-touch. Control the player with your fingers.
- Intelligently detecting the encoding of the subtitles. No need for encoding conversion.
- Direct pass through. Connect, play, enjoy your home theater.
- Multi-monitor support. Wanna work while watching your collection? just drag and F.
- Apple Remote support. Watch your favorites in sofa, more comfortable.
-Automatically find the next episode. Enjoy the whole afternoon, with just one click.
- Forget where you stopped playing last time? MPlayerX won't.
- Youtube.com support: MPlayerX could stream youtube audio and video. Just input the URL of the webpage in youtube.com which you may find in the address bar of the web browser, MPlayerX will play it for you seamlessly.
Recent user activities on MPlayerX
- POX added MPlayerX as alternative(s) to Haruna Video Player
drliu1202 liked MPlayerX- Translator5 added MPlayerX as alternative(s) to Pretty Good Music Player
MplayerX looks exactly like Quicktime X, which was probably the developer's original intention. And that's not a bad thing.
It looks better than VLC and is more Mac-like, and yes years ago I recommended it; it really was the better way to play videos and audios on a Mac. But now ...
Now it's a buggy piece of software and it was devastated by the developer, finally to adware. It comes with an installer (on a Mac!), which tries to install Yahoo, Opera and other things on your Mac. I don't know, why there is still a donation button on the site.
I'm really sorry for the destruction of this great project.