.VMD File Extension

Covox, an audio hardware company active in the late 1980s and early 1990s, developed the VMD format for use with its digital-to-analog converters and sound playback devices. The Covox Speech Thing, for example, played back VMD samples through a parallel port interface connected to PC speakers. This allowed users to generate and play simple audio recordings or synthesized sounds directly from their computers.

Audio hobbyists or retro computing enthusiasts who work with legacy audio hardware or emulators are the most likely to encounter or use VMD files today. Since VMD files contain raw data, users typically need to know the sample rate and bit depth to play or convert the files properly.

NOTE: VMD files are similar to .VMF Covox Speech Thing files. However, VMF files include format metadata, whereas VMD files do not specify how to interpret their contents.

You can open VMF files with Covoxer in Windows. However, the program is discontinued.

There are few programs that support VMD files since they are rare. The files are primarily only used in games developed by Sierra On-Line in the 1990s.

However, you can open and play VMD videos with the free VLC media player, which is available for Windows, macOS, and Linux.

You can also convert a VMD file to a more common video format with FFmpeg, then open the converted file with a media player, such as Microsoft Windows Media Player (Windows) or Apple QuickTime Player (macOS).