JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Before using Playlist application Read the following sections before using Playlist application. Terms used in Playlist application Symbols used in Playlist application Working with programs Using mixed aspect ratios in a playlist Using mixed video resolutions in a single playlist Inserting a clip that is still recording Improving performance while modifying a playlist Inserting a playlist in a playlist (workarounds) Parent topic: Working with playlists