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

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

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