Since .flv is an older format primarily used for Adobe Flash, you may want to note if the file needs to a more modern format like .mp4 (H.264) for better compatibility with current devices and browsers.
To make the content searchable in a library or database, you might use tags such as: Endurance Performance Archive Vintage Web Media 4. Technical Quality Note 350.ballbusting.flv
A brief description of what occurs in the video. 350.ballbusting.flv