.M15 | Moving Picture Experts Group | Videobestanden | MPEG Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M1A | Open Source | Audiobestanden | MPEG-1 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M2A | Unknown Developer | Videobestanden | MPEG-1 Layer 2 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M2P | Moving Picture Experts Group | Videobestanden | MPEG-2 Program Stream File | Microsoft Windows Media Player | Microsoft Corporation |
.M2S | Maxthon | Instellingsbestanden | Maxthon 2 Browser Skin File | Microsoft Windows Media Player | Microsoft Corporation |
.M2T | Roxio | Videobestanden | HDV Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M2TS | Sony | Videobestanden | Blu-ray BDAV Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M3U | Nullsoft | Audiobestanden | Media Playlist File | Microsoft Windows Media Player | Microsoft Corporation |
.M3U8 | Various Developers | Audiobestanden | UTF-8 M3U Playlist File | Microsoft Windows Media Player | Microsoft Corporation |
.M4A | Apple | Audiobestanden | MPEG-4 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.M4B | Apple | Audiobestanden | MPEG-4 Audio Book File | Microsoft Windows Media Player | Microsoft Corporation |
.M4U | Open Source | Videobestanden | MPEG-4 Playlist | Microsoft Windows Media Player | Microsoft Corporation |
.M4V | Apple | Videobestanden | iTunes Video File | Microsoft Windows Media Player | Microsoft Corporation |
.M75 | Moving Picture Experts Group | Videobestanden | MPEG Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MCL | Microsoft Corporation | Instellingsbestanden | Windows Media Center Link File | Microsoft Windows Media Player | Microsoft Corporation |
.MID | Open Source | Audiobestanden | MIDI Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.MIDI | Synthesia LLC | Audiobestanden | MIDI File | Microsoft Windows Media Player | Microsoft Corporation |
.MOB | Microsoft Corporation | Videobestanden | MOBTV Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MOOV | Apple | Videobestanden | Apple QuickTime Movie | Microsoft Windows Media Player | Microsoft Corporation |
.MOV | Apple | Videobestanden | Apple QuickTime Movie | Microsoft Windows Media Player | Microsoft Corporation |
.MP2 | New World Computing | Spelbestanden | Heroes Of Might And Magic II Map File | Microsoft Windows Media Player | Microsoft Corporation |
.MP2V | Roxio | Videobestanden | MPEG-2 Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MP3 | Moving Picture Experts Group | Audiobestanden | MP3 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.MP4 | Moving Picture Experts Group | Videobestanden | MPEG-4 Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MP4V | Moving Picture Experts Group | Videobestanden | MPEG-4 Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MPA | Unknown Developer | Audiobestanden | MPEG-2 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.MPE | Unknown Developer | Videobestanden | MPEG Movie | Microsoft Windows Media Player | Microsoft Corporation |
.MPEG | Unknown Developer | Videobestanden | MPEG Movie | Microsoft Windows Media Player | Microsoft Corporation |
.MPG | Moving Picture Experts Group | Videobestanden | MPEG Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MPG4 | Moving Picture Experts Group | Videobestanden | MPEG-4 Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MPGA | RealNetworks | Audiobestanden | MPEG-1 Layer 3 Audio File | Microsoft Windows Media Player | Microsoft Corporation |
.MPV | Moving Picture Experts Group | Videobestanden | MPEG Elementary Stream Video File | Microsoft Windows Media Player | Microsoft Corporation |
.MPV2 | Roxio | Videobestanden | MPEG-2 Video Stream | Microsoft Windows Media Player | Microsoft Corporation |
.MSV | Sony | Audiobestanden | Memory Stick Voice File | Microsoft Windows Media Player | Microsoft Corporation |
.MTS | Sony | Videobestanden | AVCHD Video File | Microsoft Windows Media Player | Microsoft Corporation |