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

hp4.ASX	Advanced Stream Redirector
hp4.DTS	Digital Theater Systems Audio File
hp4.GXF	General eXchange Format
hp4.M2V	MPEG-2 Video
hp4.M3U	MP3 Uniform Resource Locator
hp4.M4V	MPEG-4 Video File
hp4.MPEG1	MPEG-1 Video
hp4.MPEG2	MPEG-2 Video
hp4.MTS	AVCHD Video File
hp4.MXF	Material eXchange Format
hp4.OGM	Ogg Multimedia Container File
hp4.PLS	Playlist
hp4.BUP	DVD Information File
hp4.A52	Dolby Digital AC-3 Compressed Audio File
hp4.AAC	Advanced Audio Coding Compressed Audio File
hp4.B4S	Winamp 3+ Playlist
hp4.CUE	Cue Sheet
hp4.DIVX	DivX Movie
hp4.DV	Digital Video
hp4.FLV	Flash Video
hp4.M1V	MPEG-1 Video
hp4.M2TS	MPEG-2 Transport Stream Videos
hp4.MKV	Matroska Video Stream
hp4.MOV	Apple QuickTime Movie
hp4.MPEG4	MPEG-4 Video
hp4.OMA	OpenMG Audio File
hp4.SPX	Ogg Speex Audio File
hp4.TS	DVD Video
hp4.VLC	VLC Media Player Data
hp4.VOB	DVD Video Object
hp4.XSPF	XML Shareable Playlist Format
hp4.DAT	VCD Video
hp4.BIN	Binary DVD Video
hp4.IFO	DVD Information File
hp4.PART	Partially Downloaded File
hp4.3G2	3G Mobile Phone Video
hp4.AVI	Audio Video Interleave
hp4.MPEG	MPEG Video
hp4.MPG	MPEG Video
hp4.FLAC	Free Lossless Audio Codec Compressed Audio FIle
hp4.M4A	MPEG-4 Audio File
hp4.MP1	MPEG-1 Audio Layer I
hp4.OGG	Ogg Multimedia Container File
hp4.WAV	Waveform Audio
hp4.XM	Extended Module Audio File
hp4.3GP	3G Mobile Phone Video
hp4.SRT	DVD Subtitles File
hp4.WMV	Windows Media Video
hp4.AC3	Dolby Digital AC-3 Compressed Audio File
hp4.ASF	Advanced Systems Format Video
hp4.MOD	MOD Audio File
hp4.MP2	MPEG-1 Audio Layer II
hp4.MP3	MPEG-1 Audio Layer 3
hp4.MP4	MPEG-4 Part 14 Multimedia Container
hp4.WMA	Windows Media Audio File
hp4.MKA	Matroska Audio Stream
hp4.M4P	Protected AAC File

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