Ms Devon's daughter Casey (15) died in a crash near the Waitaki River bridge in October last year.
The hard-hitting DVD, which would be played to drink-drivers before sentencing in the Oamaru District Court, featured footage from television programme Police 10-7, as well as locally-filmed footage.
It included Ms Devon and her son Andrew (20) talking first-hand about the consequences of drink-driving.
In the DVD, Andrew said he was woken by a "horrific" scream from his mother when police arrived with the news of Casey's death.
He urged people to think before they acted.
"Cars are death machines if not treated properly," he said.
Ms Devon said the DVD was raw and straight to the point, and she believed it needed local content to make it work.
She praised those behind the programme for their initiative.
The past year had been "rough" for her family.
A highlight was the birth of her grand-daughter, Amelia Casey, six months ago.
Judge Stephen O'Driscoll, who launched the programme, thanked the Devon family for agreeing to participate in the DVD and expressing their thoughts and feelings.
"I am sure that . . . what you have said and the way you have said it, will hopefully have a major impact on drink-drivers."
He had spoken to other judges who will sit in the Oamaru District Court over the next six months - the trial period for the programme - and they were very supportive of the initiative.
