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

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

avi   bvi   cvi   dvi   evi   fvi   gvi   hvi   ivi   jvi   kvi   lvi   mvi   nvi   ovi   pvi   qvi   rvi   svi   tvi   uvi   vvi   wvi   xvi   yvi   zvi   0vi   1vi   2vi   3vi   4vi   5vi   6vi   7vi   8vi   9vi