The MDB and PMR files are your Avid Database files. MDB (Media Database) not sure what the PMR acronym is. The creating folder is where media will live while it is being actively captured or transcoded. Once that process is done, it is moved into the numbered folder where it lives. So, your Avid Media files is as is VolumesAvid MediaFilesMXF1 (Unless you’re on a Unity In which case it will be VolumesAvid MediaFilesMXF1ComputerName.1)
If you want to separate media, you can import or capture and immediately create a “2” folder and or any numbered folder to move media into. Keep in mind, the 1 folder will always be where the newest media will be transcoded to. Sometimes I’m importing large amounts of media, I’ll import it to the 1 folder and create a folder 100 and move the media into there. The reason the folders are numbered is that Avid will manage your file counts in your folders. After 5000 files, it will create a new numbered folder to keep the overall file counts in each folder down. The fact is, I try to keep my file counts under 2000 especially on large projects with massive amounts of media. At a certain point, it seems that file counts become less of a problem with the Avid, and more of a problem on the operating systems. You’ll notice when you click on folders with large amounts of files, it takes a while for it to resolve itself. Keep in mind, every time you move media between numbered folders, you should delete the MDB and PMR files and allow Avid to rebuilt those database files.
As far as moving media around, Automatic Duck’s Media Copy is fantastic. https://automaticduck.com/products/mc/
This can move media by bin, or by project. You hit it right on the head, as far as V1 being video track one, and A1 and A2 being audio tracks.
Richard Sanchez
Los Angeles, CA
“We are the facilitators of our own creative evolution.” – Bill Hicks