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

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

aff   bff   cff   dff   eff   fff   gff   hff   iff   jff   kff   lff   mff   nff   off   pff   qff   rff   sff   tff   uff   vff   wff   xff   yff   zff   0ff   1ff   2ff   3ff   4ff   5ff   6ff   7ff   8ff   9ff