Media Player Classic was originally created and maintained by a programmer named "Gabest". It was developed as a closed-source application, but later relicensed as free software under the terms of the GNU General Public License. MPC is hosted under the guliverkli project at SourceForge.net. The project itself is something of an umbrella organization for works by Gabest.
This project is now principally maintained by the community at the Doom9 forum. The currently active fork is called "Media Player Classic Home Cinema".