@Phelps & his ironic force
Hum,
don’t know...
(
5 seconds?)
But a recent test on normal DVDS show that they start to show signs of `
DVD rot` after only 18 months....(and become unreadable)...
Perhaps we were all a bit conned at the resilience and longativity of CDS @ DVDs...
At least we will be told the truth about these new disks - er, that they are
supposed to self destruct...

Good luck, jim...