Here's the Derek Dingle videos that I've found.
Stars of Magic, Volume 8 -- Derek perfoming his version of Elmsley 1002nd Aces slayed me. "That casual little fan was a triple buckle? Oh, my. Rewind."
Stars of Magic, Volume 11 -- With David Roth, Frank Garcia, Paul Harris. Derek performs Too Many Cards and the Riffle Pass.
Dingle's Deceptions, The Video -- Latter day Derek doing some of his early ball buster material from Dingle's Deceptions. The only video performance of Derek's invisible cockroach pass. Don't ask.
The Paris Super Session -- Derek in a relaxed environment with an appreciative audience. Includes the Eleven Card Trick. IMHO his best video performance.
Basic Card Magic -- Also released as "Slight(sic) of Hand." Just what the title implies: double lift, forcing, top change, etc. Released 1981
The Magic of Derek Dingle - Victor's 11 card trick, color triumphant, coins to glass, and four coins in the countin'. This was released in 1981 and produced by the same person as Basic Card Magic.
Covention at the Capital'98 -- Derek performing Silver Quick. I've not seen this video.
I've not seen the IMS videos of Derek but the contents appeared different than any of these tapes.
Are there any videos available of Derek on Dick Cavett, Tom Snyder, Barbara Walters or elsewhere?