Hi all, I've been having a bit of a problem with my bd-re discs of late. I bought 10 discs about 2 years ago and have been using them and erasing them without a problem. But over the past month I have been having discs that will not erase and come up as a "error erasing disc". I can erase them using quick erase but that's not much good as my Blu ray player will then not read them. I thought it might be an issue with my burner but I have a Pioneer burner and a LG burner. Both have the same problem. Can I conclude that the discs themselves are "expiring" ? I've cleaned the discs well and they are not dirty, nor are there scratches. There are faint discolured spots on the discs ... is this the problem ??