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

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

aaaa   baaa   caaa   daaa   eaaa   faaa   gaaa   haaa   iaaa   jaaa   kaaa   laaa   maaa   naaa   oaaa   paaa   qaaa   raaa   saaa   taaa   uaaa   vaaa   waaa   xaaa   yaaa   zaaa   0aaa   1aaa   2aaa   3aaa   4aaa   5aaa   6aaa   7aaa   8aaa   9aaa