Just basic VITC. Places the code in the vertical interval and is usefull for syncing up multiple camera shots and audio tracks provided they were made using the same sync generator during the shoot. Most pro shoots I've crewed on have used it, particularly at concert shoots. Most major frame accurate editors like Premiere and Avid use it. For an editor, it just reads the code and displays it on the screen (and the more sophiticated editors can generate it). It also allows you to go to a specific frame instantly, and you can make edit decision lists and the have your whole project edited automatically. All probably a little over Videopad's head. I'm retired now and just do video as a hobby, so Videopad not having it is no prpblem. But it sure makes things easier.