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

y9.ASX	Advanced Stream Redirector
y9.DTS	Digital Theater Systems Audio File
y9.GXF	General eXchange Format
y9.M2V	MPEG-2 Video
y9.M3U	MP3 Uniform Resource Locator
y9.M4V	MPEG-4 Video File
y9.MPEG1	MPEG-1 Video
y9.MPEG2	MPEG-2 Video
y9.MTS	AVCHD Video File
y9.MXF	Material eXchange Format
y9.OGM	Ogg Multimedia Container File
y9.PLS	Playlist
y9.BUP	DVD Information File
y9.A52	Dolby Digital AC-3 Compressed Audio File
y9.AAC	Advanced Audio Coding Compressed Audio File
y9.B4S	Winamp 3+ Playlist
y9.CUE	Cue Sheet
y9.DIVX	DivX Movie
y9.DV	Digital Video
y9.FLV	Flash Video
y9.M1V	MPEG-1 Video
y9.M2TS	MPEG-2 Transport Stream Videos
y9.MKV	Matroska Video Stream
y9.MOV	Apple QuickTime Movie
y9.MPEG4	MPEG-4 Video
y9.OMA	OpenMG Audio File
y9.SPX	Ogg Speex Audio File
y9.TS	DVD Video
y9.VLC	VLC Media Player Data
y9.VOB	DVD Video Object
y9.XSPF	XML Shareable Playlist Format
y9.DAT	VCD Video
y9.BIN	Binary DVD Video
y9.IFO	DVD Information File
y9.PART	Partially Downloaded File
y9.3G2	3G Mobile Phone Video
y9.AVI	Audio Video Interleave
y9.MPEG	MPEG Video
y9.MPG	MPEG Video
y9.FLAC	Free Lossless Audio Codec Compressed Audio FIle
y9.M4A	MPEG-4 Audio File
y9.MP1	MPEG-1 Audio Layer I
y9.OGG	Ogg Multimedia Container File
y9.WAV	Waveform Audio
y9.XM	Extended Module Audio File
y9.3GP	3G Mobile Phone Video
y9.SRT	DVD Subtitles File
y9.WMV	Windows Media Video
y9.AC3	Dolby Digital AC-3 Compressed Audio File
y9.ASF	Advanced Systems Format Video
y9.MOD	MOD Audio File
y9.MP2	MPEG-1 Audio Layer II
y9.MP3	MPEG-1 Audio Layer 3
y9.MP4	MPEG-4 Part 14 Multimedia Container
y9.WMA	Windows Media Audio File
y9.MKA	Matroska Audio Stream
y9.M4P	Protected AAC File

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