|Format||Standard Play CAV|
|Running Time||91 minutes|
The video transfer of Duel is acceptable, however the source material, 35mm film, has some obvious flaws and they show up on the screen. The audio is transferred well, however, it seems the audio and video are out of sync by more than a full second for the famous truck crash sequence. Not having personally seen the film in any other venue than DiscoVision, I cannot be sure if this is the directors intent, or a mistake in the transfer.
Some copies have additional information at the end of side 3. A player which ignores the "end of side" is required to play this additional program. What has been discovered is SMPTE color bars and 1000hz tone. During the test pattern, the frame counter remains stationary. However, further down the disc, the counter resets, the typical side opening bumper begins, announcing side 4...of Duel. The first 8,290 frames of side 4 are present before there simply isn't any recorded material left on the disc and the player looses sync. The complete side 4 is then presented, on side 4.