After Effects CS5 can read and write native MXF and OMF video media essence, as
used in Avid MXF and OMF essence files. You can import MXF and OMF files as you would
other footage types. When you import an AAF file that references an OMF
file, the OMF footage also imports. The audio files are not imported at
the same time. You can import them later to sync up with your OMF file
but if you are going to export the file back into Avid Media Composer this
is not necessary. The great feature that I use everyday is the export to MXF or OMF. This not only saves space on your hard-drive but it also helps to
preserve quality. Just remember the audio that is associated with the MXF and OMF will not export. This is a great new feature of After Effects for
Avid Media Composer users! One of the many things you will learn in our up
and coming
After Effects Classes!