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

z4a.ASX	Advanced Stream Redirector
z4a.DTS	Digital Theater Systems Audio File
z4a.GXF	General eXchange Format
z4a.M2V	MPEG-2 Video
z4a.M3U	MP3 Uniform Resource Locator
z4a.M4V	MPEG-4 Video File
z4a.MPEG1	MPEG-1 Video
z4a.MPEG2	MPEG-2 Video
z4a.MTS	AVCHD Video File
z4a.MXF	Material eXchange Format
z4a.OGM	Ogg Multimedia Container File
z4a.PLS	Playlist
z4a.BUP	DVD Information File
z4a.A52	Dolby Digital AC-3 Compressed Audio File
z4a.AAC	Advanced Audio Coding Compressed Audio File
z4a.B4S	Winamp 3+ Playlist
z4a.CUE	Cue Sheet
z4a.DIVX	DivX Movie
z4a.DV	Digital Video
z4a.FLV	Flash Video
z4a.M1V	MPEG-1 Video
z4a.M2TS	MPEG-2 Transport Stream Videos
z4a.MKV	Matroska Video Stream
z4a.MOV	Apple QuickTime Movie
z4a.MPEG4	MPEG-4 Video
z4a.OMA	OpenMG Audio File
z4a.SPX	Ogg Speex Audio File
z4a.TS	DVD Video
z4a.VLC	VLC Media Player Data
z4a.VOB	DVD Video Object
z4a.XSPF	XML Shareable Playlist Format
z4a.DAT	VCD Video
z4a.BIN	Binary DVD Video
z4a.IFO	DVD Information File
z4a.PART	Partially Downloaded File
z4a.3G2	3G Mobile Phone Video
z4a.AVI	Audio Video Interleave
z4a.MPEG	MPEG Video
z4a.MPG	MPEG Video
z4a.FLAC	Free Lossless Audio Codec Compressed Audio FIle
z4a.M4A	MPEG-4 Audio File
z4a.MP1	MPEG-1 Audio Layer I
z4a.OGG	Ogg Multimedia Container File
z4a.WAV	Waveform Audio
z4a.XM	Extended Module Audio File
z4a.3GP	3G Mobile Phone Video
z4a.SRT	DVD Subtitles File
z4a.WMV	Windows Media Video
z4a.AC3	Dolby Digital AC-3 Compressed Audio File
z4a.ASF	Advanced Systems Format Video
z4a.MOD	MOD Audio File
z4a.MP2	MPEG-1 Audio Layer II
z4a.MP3	MPEG-1 Audio Layer 3
z4a.MP4	MPEG-4 Part 14 Multimedia Container
z4a.WMA	Windows Media Audio File
z4a.MKA	Matroska Audio Stream
z4a.M4P	Protected AAC File

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