i used macromedia captivate.
i've tried a lot of them but must admit havent formed a definitive opinion about which is best.
captivate seems to handle audio very well. it does occassionally hickup when capturing video.
i'd like to do an award for best flash screen capture tool / demo maker - its a great kind of program and identifying the best one would be nice.. there are a lot of them now. i'm going to check out the bb and see how it compares.