Just wanted to give this guy full credit! With generous email support from the author, i realised my problem (reported earlier) was just pilot error. I am now easily able to output interlaced video formats from my MacMini (Early 2006 model, Intel Core Duo, with the intel GMA 950 graphics chipset). I'd like the user interface to be a wee bit more obvious, but it surely gets the job done! Excellent stuff!