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

q4.ASX	Advanced Stream Redirector
q4.DTS	Digital Theater Systems Audio File
q4.GXF	General eXchange Format
q4.M2V	MPEG-2 Video
q4.M3U	MP3 Uniform Resource Locator
q4.M4V	MPEG-4 Video File
q4.MPEG1	MPEG-1 Video
q4.MPEG2	MPEG-2 Video
q4.MTS	AVCHD Video File
q4.MXF	Material eXchange Format
q4.OGM	Ogg Multimedia Container File
q4.PLS	Playlist
q4.BUP	DVD Information File
q4.A52	Dolby Digital AC-3 Compressed Audio File
q4.AAC	Advanced Audio Coding Compressed Audio File
q4.B4S	Winamp 3+ Playlist
q4.CUE	Cue Sheet
q4.DIVX	DivX Movie
q4.DV	Digital Video
q4.FLV	Flash Video
q4.M1V	MPEG-1 Video
q4.M2TS	MPEG-2 Transport Stream Videos
q4.MKV	Matroska Video Stream
q4.MOV	Apple QuickTime Movie
q4.MPEG4	MPEG-4 Video
q4.OMA	OpenMG Audio File
q4.SPX	Ogg Speex Audio File
q4.TS	DVD Video
q4.VLC	VLC Media Player Data
q4.VOB	DVD Video Object
q4.XSPF	XML Shareable Playlist Format
q4.DAT	VCD Video
q4.BIN	Binary DVD Video
q4.IFO	DVD Information File
q4.PART	Partially Downloaded File
q4.3G2	3G Mobile Phone Video
q4.AVI	Audio Video Interleave
q4.MPEG	MPEG Video
q4.MPG	MPEG Video
q4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
q4.M4A	MPEG-4 Audio File
q4.MP1	MPEG-1 Audio Layer I
q4.OGG	Ogg Multimedia Container File
q4.WAV	Waveform Audio
q4.XM	Extended Module Audio File
q4.3GP	3G Mobile Phone Video
q4.SRT	DVD Subtitles File
q4.WMV	Windows Media Video
q4.AC3	Dolby Digital AC-3 Compressed Audio File
q4.ASF	Advanced Systems Format Video
q4.MOD	MOD Audio File
q4.MP2	MPEG-1 Audio Layer II
q4.MP3	MPEG-1 Audio Layer 3
q4.MP4	MPEG-4 Part 14 Multimedia Container
q4.WMA	Windows Media Audio File
q4.MKA	Matroska Audio Stream
q4.M4P	Protected AAC File

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