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

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

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