The Advanced Authoring Format (AAF) is a file format that represents a multi-layered timeline complete with transitions, as well as video and audio effects.
AAF files are similar to traditional EDLs, only they are more powerful because of their multi-layer support. AAF files, therefore, are even closer in composition to Final Cut Pro XML files.
Only AAF files exported from Avid editing applications are supported for import into Smoke, including AAF files pointing to DNxHD in MXF material. As well, only the metadata in AAF files can be transferred, not the media itself. Media can be recaptured and/or relinked from the imported AAF file.
Additionally, only select transitions and effects are supported when importing an AAF file to Smoke.
You can also load AAF made from Varicam content.