For my application, I need to be able to make a secure video to play in a web bowser. I am currently using Squeeze and I am compressing video using the Sorenson Video 3 codec and setting a media key, which seems to do the job adequately. Is the Sorenson Video 3 codec still the only quicktime format that will allow you to set a media key? Does the Sorenson Video 3 codec in FCP allow you to set media keys? Thanks for any help!