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

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

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