GLOSSARY Video Completion Rate (VCR) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Percentage of times a video ad is played until completion. Back to index Related concepts VAST (Video Ad Serving Template)vCPM (Viewable Cost Per Mille)VendorVideo Ad Completion RateVideo AdvertisingVideo Multiple Ad Playlist (VMAP)Video on Demand (VOD)Video Player Ad Interface Definition (VPAID)