There's no official limit on the number of computers you can use; You simply log in to your user account from any computer and you will have access to premium content.

The only limit is to the number of users, which is one per premium account. You are not allowed to share your login info with anyone else. Special exceptions are made for viewing with a partner or teacher, since most users will need to watch these videos with someone else to learn. The limit is one partner and one teacher per premium account, and the exception does not give them access or allow them to share your login info; It simply allows them to view it with you.

For the most part, this is all done on the honor system, since we can't actually monitor who is logging in to your account. We do log I.P. addresses, however, we expect that there will be more than one I.P. address per account, since most people will be watching videos from at least two or three different devices, which are all likely to be on a rotating I.P.

In the event a user is logging a grossly disproportionate number of IP addresses in a short time, to the point that there's absolutely no other explanation than the sharing of login info, the website will politely request a change of password. But if you're an average user who might watch from two or three different computers, an iPad and a celphone or two, you won't even come close to tripping this trigger.

Thank you for your interest! Let me know if you have any more questions.

Regards,
Jonathan Atkinson
www.ballroomdancers.com