I have been using the freeware iSquint to convert .flv Flash Video , such as YouTube, to MPEG-4 in order to burn a DVD in Toast 7 . However, that no longer works. The resulting iSquint conversions come up as empty black windows with no audio, but they will play beautifully in VLC and other media players. I suspect the reason is QuickTime, not Toast . Recent QuickTime 7.x upgrades seem to dislike the "old" MPEG-4 codec . So I am wondering if the commercial version of iSquint, called VisualHub ( $ 24.00) will work. The forums and support at TechSpansion , maker of iSquint and VisualHub, are not helpful in resolving this. It's only begun occurring with the last two minor upgrades of QT7. I'd like to know before I buy VisualHub.