STLEdit 2.0 for Mac was free to download from our software library. STLEdit for Mac is categorized as Audio & Video Tools.
From the developer:
[ Via MacsOnly! ] STLEdit is a document-centric subtitling application developed for Apple's Mac OS X 10.4. This latest version introduces a completely re-designed GUI and provides a set of new core concepts; a frame-rate and subtitle format independent subtitling editor, as well a host of new functions and features all designed to make an effective subtitling process on OS X and comprehensive support for SCC closed captioning.