How to crop a QuickTime movie to delete black top and bottom areas?

How to crop a QuickTime movie? I mean, a ".mov" movie that shows a black area on top and bottom, which I want to delete.


Basically, you have two options. 1) You can use an application like MPEG Streamclip (free) which allows you to reset the top/bottom/left/right screen edges (i.e., crop the active viewing area) and then re-compress the remaining content as a new file (as recommended by QTKirk) or 2) if you have QT Pro, you can simply "mask" the player display which crops the display screen to the desired mask dimension and location within the original area. The advantage of the latter work flow is not having to re-compress the file which can be very time consuming. Since the latter method may seem confusing to some, I have prepared a "quickie" tutorial which may be able to "talk" you through the process:


TUTORIAL T026: Using a Mask to Crop