What's the best settings to have if I am capturing an old VHS? Naturally the quality is already poor so im not fussed about that, but a 3 hour video is taking up about 15gb. Whats the lowest quality I can have that won't make the video worse but takes up far less space?

Edit to add-
Also adding to this, Bandicam seems to make them in one hour clips? Not just one continued clip, can't see any setting that I have that makes this do this?