The HD delay line means that no event is missed as two minutes of historic footage from the stern camera are continuously cached in memory. When activated via one of the three “crash record” buttons located in the hatchway and at the helm, the video cache is recorded to the delay line computer. A "crash event" can also be triggered by extreme telemetry data which is fed into the media desk, for example an excessive heal angle or wave height.

Example video which has been captured using the delay line technology can be seen on the on the Volvo Ocean Race TV website:
Team Russia's Chinese Gybe
Knock out blow
Delay Line Technology