This is the official RoQ encoder for Quake 3 Arena. Originally made available via Id Software's ftp page. It allows you to encode fmvs for Id Tech 3 and Id Tech 4.
This is mirrored here for archival purposes. There are multiple ways to make RoQ files but the original Id Software method should be preserved. If you want a GUI front end for this program use this.
For more information on the .roq format check this page.