The problem I have with Sorenson is that if I try to compress WMV and MOV in the same session it always ALWAYS crashes. Additionally the watermark feature (of HUGE importance is not working at all and they tell me that they hope to have that fixed in the next version). So when I have to compress video I can not just set it and go...I DO have to sit there so that when it crashes, I can reload and start over from the clips that have not yet been completed. It was supposed to make things easier.