Fairly certain you can use the Real Alternative codec (better in the long run anyway) and cap from VLC or Media Player Classic (all free, all good stuff). I dont deal with real formats enough to know, but I think the last time I installed it there was something about a directshow bridge - meaning that you could even pass Real junk through ffdshow (although post processing really cant help the unholy felgercarb-aciousness that badly encoded - which seems to be most of em - Real videos exude).