Anyway, up until version 1.50, they worked fine. When I play them, 1.50 says 'old move replaying' and it plays it. However, in 1.51, it's stopped working. When I try and play it, it says, 'must play with sound off'. When I turn sound off, it says, 'must play with sound on'.
How can I get these old movies working in 1.51? And, is there a way to convert these 'old movies' to the new format?