I'm trying to create a set of English subtitles for the Japanese cut of Johnny Mnemonic, which has the scenes where Japanese is spoken only in Japanese. I have a copy of the screenplay to guide me. I tried using the subtitle tool in DVD-lab, but this is too imprecise for me. Does anyone know of a program that allows the user to view and monitor the video/audio as they are creating the subtitles, or something like that?

Or just any tips in general?

Before anyone mentions it, I checked Doom9's guides and they pretty much only cover manipulating existing subtitle tracks.