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

y4b.ASX	Advanced Stream Redirector
y4b.DTS	Digital Theater Systems Audio File
y4b.GXF	General eXchange Format
y4b.M2V	MPEG-2 Video
y4b.M3U	MP3 Uniform Resource Locator
y4b.M4V	MPEG-4 Video File
y4b.MPEG1	MPEG-1 Video
y4b.MPEG2	MPEG-2 Video
y4b.MTS	AVCHD Video File
y4b.MXF	Material eXchange Format
y4b.OGM	Ogg Multimedia Container File
y4b.PLS	Playlist
y4b.BUP	DVD Information File
y4b.A52	Dolby Digital AC-3 Compressed Audio File
y4b.AAC	Advanced Audio Coding Compressed Audio File
y4b.B4S	Winamp 3+ Playlist
y4b.CUE	Cue Sheet
y4b.DIVX	DivX Movie
y4b.DV	Digital Video
y4b.FLV	Flash Video
y4b.M1V	MPEG-1 Video
y4b.M2TS	MPEG-2 Transport Stream Videos
y4b.MKV	Matroska Video Stream
y4b.MOV	Apple QuickTime Movie
y4b.MPEG4	MPEG-4 Video
y4b.OMA	OpenMG Audio File
y4b.SPX	Ogg Speex Audio File
y4b.TS	DVD Video
y4b.VLC	VLC Media Player Data
y4b.VOB	DVD Video Object
y4b.XSPF	XML Shareable Playlist Format
y4b.DAT	VCD Video
y4b.BIN	Binary DVD Video
y4b.IFO	DVD Information File
y4b.PART	Partially Downloaded File
y4b.3G2	3G Mobile Phone Video
y4b.AVI	Audio Video Interleave
y4b.MPEG	MPEG Video
y4b.MPG	MPEG Video
y4b.FLAC	Free Lossless Audio Codec Compressed Audio FIle
y4b.M4A	MPEG-4 Audio File
y4b.MP1	MPEG-1 Audio Layer I
y4b.OGG	Ogg Multimedia Container File
y4b.WAV	Waveform Audio
y4b.XM	Extended Module Audio File
y4b.3GP	3G Mobile Phone Video
y4b.SRT	DVD Subtitles File
y4b.WMV	Windows Media Video
y4b.AC3	Dolby Digital AC-3 Compressed Audio File
y4b.ASF	Advanced Systems Format Video
y4b.MOD	MOD Audio File
y4b.MP2	MPEG-1 Audio Layer II
y4b.MP3	MPEG-1 Audio Layer 3
y4b.MP4	MPEG-4 Part 14 Multimedia Container
y4b.WMA	Windows Media Audio File
y4b.MKA	Matroska Audio Stream
y4b.M4P	Protected AAC File

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