Check out the images for hints on the repertoire for videos: how to pick a good piece and what’s the difference between arias you sing for a video round and a live audition
It seems a very simple subject:
just record your routine repertoire, and that’s all. But that’s not, folks. It is harder to choose a suitable piece for a video because you only have one shot: you can’t charm the juries with your amazing confidence and a nice chat, they won’t consider a bad pianist or stress-factor, they will be strict and fair and you’ll have about 1-4 bars time to impress them (yes, they don’t listen to all the materials if they don’t like the beginning).
Still, when choosing a repertoire, you have to feel at ease and follow common sense.