DVDs do degrade over time, at least somewhat (please experts, correct me if i'm wrong.) Having already extremely high PIE/PIF measns it isn't going to take much in the way of degradation to ruin the disc.
Even if this DVD currently okay, which i'd be very suprised of with that huge PIF spike, it isn't going to last long. If I were you i'd run a surface scan from within CD Speed and see if the data is infact intact.
Let the 0 quality score speak for itself.