I'd really like to find out if it is possible to convert or back date a Quicktime file, version 7.0.3 to previous versions of Quicktime, preferably QT 6. I have some vacation videos and slideshows which I created in iMovie and exported to QT that I'd like friends with older Mac systems and older Windows PC opperating systems that can't update to the lastest QT, to be able to see. Or if QT Pro allows you to do this? I have an iMac, OSX, version 10.3.9, current version of standard (non-Pro) QT. I hope someone can help! Thank you!