Given the laws of statistics, such will never happen. You are bound to have a failure "someday."
Here I just get them with brand names and shop around. Since you may not be where I am, my shopping spots may not apply to Aus.
Bob
Can anyone suggest a good place to buy DVD'S (about 100 at a time) for a good price and ones that will not fail?
Has anyone bought a DVD, burned it, played it a few times and then it went bad?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic