Of all the media formats that can be captioned, dealing with old analog video tape is perhaps the trickiest. The video first needs to be digitized, then a caption file needs to be generated, and finally, the end result needs to be encoded back onto tape. Depending on the encoding system you are using, you may need to just digitize the audio track in order to generate a caption file. This tutorial shows you how to extract a digital copy of the audio track from a VHS tape.
Extracting Audio from VHS tapes
Transcript of Movie:
Attached file at the bottom of this tutorial.