nPlayer!

MPC-HC is an extremely light-weight, open source media player for Windows.

Clementine is a cross-platform free and open source music player and library organizer. It is a port of Amarok 1.4 to the Qt 4 framework and the GStreamer multimedia framework, focusing on a fast and easy-to-use interface for searching and playing your music. It is available for Unix-like, Windows and Mac OS X.

Potplayer is a minimalist media player that has an extensive range of configurable options to choose from and lots of functionality.

MPV is an audio and movie player based on MPlayer and mplayer2. It supports a wide variety of video file formats, audio and video codecs, and subtitle types. It shares some features with the former projects while introducing many more.

SMPlayer intends to be a complete front-end for MPlayer, from basic features like playing videos, DVDs, and VCDs to more advanced features like support for MPlayer filters and more. SMPlayer remembers the settings of all files you play. So you start to watch a movie but you have to leave... dont worry, when you open that movie again it will resume at the same point you left it, and with the same settings: audio track, subtitles, volume...

Media Player Classic was designed to look just like Windows Media Player 6.4, but with many additional new features. It has a built in DVD player with real-time zoom, support for AVI subtitles, QuickTime and RealVideo support and built-in MPEG2/SVCD/DVD codec.

MX Player - The best way to enjoy your movies.

The KMPlayer is a versatile media player which can cover various types of container format such as TS (also from Technisat Digicorder), VCD, DVD, AVI, MKV, Ogg Theora, OGM, 3GP, MPEG-1/2/4, WMV, RealMedia, and QuickTime among others. It handles a wide range of subtitles and allows you to capture audio, video, and screenshots in many ways. For playing TS-movies from the Technisat Digicorder you need the KMPlayer.

Play your music and videos. Stay entertained and up to date with podcasts and video podcasts. Discover new music with Last.fm radio. Sync your G1 phone, iPod, and other devices.

MPC-BE is a free and open source audio and video player for Windows.

Tomahawk gives you to access to all of your favorite music in one powerful media player. Seamlessly jump from playing a song off your local machine, to one streaming from your other machines, to a recommendation from Spotify, to a pre-release on SoundCloud to your favorite indie band on Jamendo.

The media player provided pre-installed with all modern Windows versions (7 and higher): Windows Media Player 12 plays more music and video than ever, including Flip Video and unprotected songs from your iTunes library! Organize your digital media collection, sync digital media files to a portable device, shop online for digital media content, and more.

Quod Libet is a Gapless GTK+-based audio player written in Python. Its designed around the idea that you know how to organize your music better than we do. It lets you make playlists based on regular expressions (dont worry, regular searches work too). It lets you display and edit any tags you want in the file. And it lets you do this for all the file formats it supports - Ogg Vorbis, FLAC, MP3, Musepack, and MOD.