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

ac3.ASX	Advanced Stream Redirector
ac3.DTS	Digital Theater Systems Audio File
ac3.GXF	General eXchange Format
ac3.M2V	MPEG-2 Video
ac3.M3U	MP3 Uniform Resource Locator
ac3.M4V	MPEG-4 Video File
ac3.MPEG1	MPEG-1 Video
ac3.MPEG2	MPEG-2 Video
ac3.MTS	AVCHD Video File
ac3.MXF	Material eXchange Format
ac3.OGM	Ogg Multimedia Container File
ac3.PLS	Playlist
ac3.BUP	DVD Information File
ac3.A52	Dolby Digital AC-3 Compressed Audio File
ac3.AAC	Advanced Audio Coding Compressed Audio File
ac3.B4S	Winamp 3+ Playlist
ac3.CUE	Cue Sheet
ac3.DIVX	DivX Movie
ac3.DV	Digital Video
ac3.FLV	Flash Video
ac3.M1V	MPEG-1 Video
ac3.M2TS	MPEG-2 Transport Stream Videos
ac3.MKV	Matroska Video Stream
ac3.MOV	Apple QuickTime Movie
ac3.MPEG4	MPEG-4 Video
ac3.OMA	OpenMG Audio File
ac3.SPX	Ogg Speex Audio File
ac3.TS	DVD Video
ac3.VLC	VLC Media Player Data
ac3.VOB	DVD Video Object
ac3.XSPF	XML Shareable Playlist Format
ac3.DAT	VCD Video
ac3.BIN	Binary DVD Video
ac3.IFO	DVD Information File
ac3.PART	Partially Downloaded File
ac3.3G2	3G Mobile Phone Video
ac3.AVI	Audio Video Interleave
ac3.MPEG	MPEG Video
ac3.MPG	MPEG Video
ac3.FLAC	Free Lossless Audio Codec Compressed Audio FIle
ac3.M4A	MPEG-4 Audio File
ac3.MP1	MPEG-1 Audio Layer I
ac3.OGG	Ogg Multimedia Container File
ac3.WAV	Waveform Audio
ac3.XM	Extended Module Audio File
ac3.3GP	3G Mobile Phone Video
ac3.SRT	DVD Subtitles File
ac3.WMV	Windows Media Video
ac3.AC3	Dolby Digital AC-3 Compressed Audio File
ac3.ASF	Advanced Systems Format Video
ac3.MOD	MOD Audio File
ac3.MP2	MPEG-1 Audio Layer II
ac3.MP3	MPEG-1 Audio Layer 3
ac3.MP4	MPEG-4 Part 14 Multimedia Container
ac3.WMA	Windows Media Audio File
ac3.MKA	Matroska Audio Stream
ac3.M4P	Protected AAC File

aac3   bac3   cac3   dac3   eac3   fac3   gac3   hac3   iac3   jac3   kac3   lac3   mac3   nac3   oac3   pac3   qac3   rac3   sac3   tac3   uac3   vac3   wac3   xac3   yac3   zac3   0ac3   1ac3   2ac3   3ac3   4ac3   5ac3   6ac3   7ac3   8ac3   9ac3