4.2

If you assign a surround channel layout to a stereo source file:
The output file will have only left and right channels—mapped
to the left front (L) and right front (R) channels of the source file
—while the other channels are unassigned.
If you assign a left front or left rear surround channel to a
stereo source file: Compressor maps the source file to the left
channel (and ignores the right channel).
Create iTunes Store packages
iTunes Store packages overview
To submit video content to the iTunes Store for sale, you can use
Compressor to assemble your media and supplemental materials,
including subtitle tracks, a preview movie, and more.
For specific instructions on how to assemble, configure, and build
an iTunes Store package, see .
After creating an iTunes Store Package, you can work with a
to submit the package to the iTunes Store. During
submission, the delivery partner will include additional required
metadata and other materials to ensure your package is
complete. A delivery partner can also provide billing and support
services after your video becomes available for sale. For more
information, see .
For more details about the entire creation and submission
process, including information for customers with direct
submission privileges, see the
.
Build iTunes Store packages
delivery partner
About submitting to the iTunes Store
iTunes Store Package Quick Start
Guide