Definitions for "Superstitials"
An interstitial ad format developed by Unicast which is fully pre-cached before playing. Specs are 550 x 480 pixels (2/3 of screen), up to 100K file size and up to 20 seconds in length
Rich media advertisements that download in the background while a visitor is reading a web page and launch a browser window only when it has completely downloaded. They are attractive to advertisers as they permit larger and more interactive ads than a traditional banner.