A VAST tag is basically an XML tag containing information of adverts that will be served within video players.
The client is able to manage the adverts in the Umbraco back office, and add them to any specific film and at any specific time they wish. Once the movie starts playing, the player requests the VAST tag via the URL provided. The server then dynamically generates the tag with the details and content that the client has already created. The information is then received by the video player, which plays the selected adverts at the specified times.
We also created a custom section in the Umbraco back office to give the client access to movie and advert statistics. They can easily track which movies and which adverts have been watched on which timeframes, generate reports and control how the income is split among the film makers.