I would say folder description is more useful than file description. I would use folder description to provide meta data describing the files. Given we're using folders of audio files I would put composer or for recording dates in the description to distinguish one similarly named folder from another.

While your looking to enhance OurFiles, can I make another couple of requests:

1. I have had to use an asset for one of my audio files, when I would have preferred to load it into OurFiles because it is greater than 20M limit. I presume there is a larger limit on uploading asset files. Could these be made the same ?
2. Files and folders don't show up in the search site request. This would be useful to find specific folders, particularly as I'm not really wanting to put OurFiles in the navigation

Thanks 

     Graham