411 REFERENCE · Wikipedia
.sub
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
.sub may refer to:
MicroDVD Subtitle File, a file that contains subtitle (captioning) data for a movie or video clip
Subchannel Data File, a file that can be a part of CloneCD image files; see CloneCD Control File
DirectVobSub Subtitle File, a binary file that contains subtitles (captioning) data for a movie or video clip