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

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

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