In particular, Secondlife. Secondlife has a third party viewer called Blackdragon which is pretty much designed for machima...the problem is I can record, pause...and do not know for the LIFE of me where the recording went. I am looking through their interface too to see how to directly download as i make raw scenes. If anyone else knows how to do this, either with sl or videogames or anything else...I did not find how to associate specific programs with moviemaker.