Types of Linear video ads:
Pre-roll - Runs before a piece of video content Pro: must be viewed before content is played. Con: could cause viewers to click away before ad fully plays.
Mid-roll - Runs somewhere in the middle of a piece of video content, pausing the content and resuming it when complete. Pro: Gives viewers time to get hooked into the video content before displaying, possibly reducing abandonment. Con: Intrusive, like TV advertising and on shorter pieces of content could still cause abandonment.
Post-roll - Video ad plays at the completion of the video content. Pro: Least intrusive of these ads. Con: No motivation for viewer to watch as content has already completed.
User Ad Choice Overlay - An interactive overlay that offers a choice of ads for the viewer. After a specific amount of time, a default video ad will play, usually as a pre-roll. Pro: Better targeting of ads as users decide which brand or product they want to see. Con: Could cause abandonment if the timer is too long and the viewer gets restless.