Protect Videos online with password

I sell training videos online for schools.

Right now they have a password that takes them to a password protected page that then has straight links to the videos. All I knew to do at the time. Now some schools are direct linking to the videos bypassing the login. (obvious, I know. Hoped it would take longer for them to figure out.)

What's my best solution? Ultimately I'd love a wordpress login to secure areas (like with membership) but I don't want them to have access to the dashboard, because a school gets the license and all the kids login. I don't want their students having fun changing the password or anything.

Is there a wordpress solution? Would also love to track logins... think I see a free plug for that.

Thanks so much guys... Really sad because it's an old friend that's sharing the videos as his own work. :slight_frown: