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

i7.ASX	Advanced Stream Redirector
i7.DTS	Digital Theater Systems Audio File
i7.GXF	General eXchange Format
i7.M2V	MPEG-2 Video
i7.M3U	MP3 Uniform Resource Locator
i7.M4V	MPEG-4 Video File
i7.MPEG1	MPEG-1 Video
i7.MPEG2	MPEG-2 Video
i7.MTS	AVCHD Video File
i7.MXF	Material eXchange Format
i7.OGM	Ogg Multimedia Container File
i7.PLS	Playlist
i7.BUP	DVD Information File
i7.A52	Dolby Digital AC-3 Compressed Audio File
i7.AAC	Advanced Audio Coding Compressed Audio File
i7.B4S	Winamp 3+ Playlist
i7.CUE	Cue Sheet
i7.DIVX	DivX Movie
i7.DV	Digital Video
i7.FLV	Flash Video
i7.M1V	MPEG-1 Video
i7.M2TS	MPEG-2 Transport Stream Videos
i7.MKV	Matroska Video Stream
i7.MOV	Apple QuickTime Movie
i7.MPEG4	MPEG-4 Video
i7.OMA	OpenMG Audio File
i7.SPX	Ogg Speex Audio File
i7.TS	DVD Video
i7.VLC	VLC Media Player Data
i7.VOB	DVD Video Object
i7.XSPF	XML Shareable Playlist Format
i7.DAT	VCD Video
i7.BIN	Binary DVD Video
i7.IFO	DVD Information File
i7.PART	Partially Downloaded File
i7.3G2	3G Mobile Phone Video
i7.AVI	Audio Video Interleave
i7.MPEG	MPEG Video
i7.MPG	MPEG Video
i7.FLAC	Free Lossless Audio Codec Compressed Audio FIle
i7.M4A	MPEG-4 Audio File
i7.MP1	MPEG-1 Audio Layer I
i7.OGG	Ogg Multimedia Container File
i7.WAV	Waveform Audio
i7.XM	Extended Module Audio File
i7.3GP	3G Mobile Phone Video
i7.SRT	DVD Subtitles File
i7.WMV	Windows Media Video
i7.AC3	Dolby Digital AC-3 Compressed Audio File
i7.ASF	Advanced Systems Format Video
i7.MOD	MOD Audio File
i7.MP2	MPEG-1 Audio Layer II
i7.MP3	MPEG-1 Audio Layer 3
i7.MP4	MPEG-4 Part 14 Multimedia Container
i7.WMA	Windows Media Audio File
i7.MKA	Matroska Audio Stream
i7.M4P	Protected AAC File

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