You can store as many audio and video files as you like in your Cut Time document library. The only requirement is that you respect copyright and not store anything you do not have rights to.
Participation in your ensembles likely requires many documents. Permission forms, how-to documents, handbooks - you name it, you can store it in Cut Time.
You can set permissions on each document down to the ensemble, section or position level, giving you complete control over who can access what.