Thanks for the suggestion to use QT7 Pro. I use that to export lower res videos for easy upload, but had forgotten that it could Trim to Selection and add audio tracks.
I may resort to using Final Cut. I’d rather not have to export an audio file of the entire length of a film then add it to a quicktime file then trim to send out a scene or two. Final Cut will allow me to bounce a cue from Cubase and spot it using time code rather than having to use the absolute beginning of the video file as a reference.
This is definitely one area where Pro Tools really has the upper hand over Cubase.
Thanks everyone for the replies.