[I need help from people who sell videos 🌻]

Thank you so much for your help melanielm!! I really appreciate your reply. 

[I need help from people who sell videos 🌻]

I create custom yoga videos for clients, and they receive full rights to their videos. 

I would like to offer pre-made videos but I'm unsure how to go about the copyrights. These pre-made videos would be much cheaper than the custom videos, so its a great option for people who can't afford the other gigs I offer. 

When I sell access to these videos, what kind of rights would they receive? Would this effect their ability to post on YouTube, social media etc? Help! I have googled this but want to see what others do.