VLC media player is an open source video and audio player capable of playing almost any type of media including DVDs and VCDs. In addition to being able to play most video and audio files, VLC can also post free ads without registration
File extensions that can be opened by vlc-media-player

c4.ASX	Advanced Stream Redirector
c4.DTS	Digital Theater Systems Audio File
c4.GXF	General eXchange Format
c4.M2V	MPEG-2 Video
c4.M3U	MP3 Uniform Resource Locator
c4.M4V	MPEG-4 Video File
c4.MPEG1	MPEG-1 Video
c4.MPEG2	MPEG-2 Video
c4.MTS	AVCHD Video File
c4.MXF	Material eXchange Format
c4.OGM	Ogg Multimedia Container File
c4.PLS	Playlist
c4.BUP	DVD Information File
c4.A52	Dolby Digital AC-3 Compressed Audio File
c4.AAC	Advanced Audio Coding Compressed Audio File
c4.B4S	Winamp 3+ Playlist
c4.CUE	Cue Sheet
c4.DIVX	DivX Movie
c4.DV	Digital Video
c4.FLV	Flash Video
c4.M1V	MPEG-1 Video
c4.M2TS	MPEG-2 Transport Stream Videos
c4.MKV	Matroska Video Stream
c4.MOV	Apple QuickTime Movie
c4.MPEG4	MPEG-4 Video
c4.OMA	OpenMG Audio File
c4.SPX	Ogg Speex Audio File
c4.TS	DVD Video
c4.VLC	VLC Media Player Data
c4.VOB	DVD Video Object
c4.XSPF	XML Shareable Playlist Format
c4.DAT	VCD Video
c4.BIN	Binary DVD Video
c4.IFO	DVD Information File
c4.PART	Partially Downloaded File
c4.3G2	3G Mobile Phone Video
c4.AVI	Audio Video Interleave
c4.MPEG	MPEG Video
c4.MPG	MPEG Video
c4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
c4.M4A	MPEG-4 Audio File
c4.MP1	MPEG-1 Audio Layer I
c4.OGG	Ogg Multimedia Container File
c4.WAV	Waveform Audio
c4.XM	Extended Module Audio File
c4.3GP	3G Mobile Phone Video
c4.SRT	DVD Subtitles File
c4.WMV	Windows Media Video
c4.AC3	Dolby Digital AC-3 Compressed Audio File
c4.ASF	Advanced Systems Format Video
c4.MOD	MOD Audio File
c4.MP2	MPEG-1 Audio Layer II
c4.MP3	MPEG-1 Audio Layer 3
c4.MP4	MPEG-4 Part 14 Multimedia Container
c4.WMA	Windows Media Audio File
c4.MKA	Matroska Audio Stream
c4.M4P	Protected AAC File

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