What constitute a video?

Good question.

And it depends on the projects you have going at any time.

A video could be a 30 second ad, a 3 minute promo, a 10 minute documentary for Youtube or a 60 minute webinar.

In terms of how quickly we get through them and so how much runtime, effectively, you get each month?

That depends on how many revisions there are and how many people need to give their feedback and approval.

The more detailed the requests and the more specific the references we receive, the higher the chance of you being chuffed first time.