.SUB File Extension

Text file containing subtitles used by MicroDVD, DivX, and other movie formats; includes subtitle text and cue points for when each subtitle should be displayed; often saved along with a corresponding video file and referenced during playback.

Another commonly used subtitle format is the SubRip (.SRT) format.

Game level for SubTerra, a 2D puzzle game that requires players to use thoughtful planning to collect gems and complete each level; contains level layout information as well as objects and events included in the the level.