Does anybody know any DVD-R discs that work with a pioneer 120s drive. I have now burnt several different makes of discs without success. The spec says the drive is compatible with DVD-R but I have had no luck. The discs all work fine in both my stand alone players. I have burnt a DVD+R as well & allthough the specs do not list DVD+R these seem fine in the 120s but do not work on my stand alone players. All very strange.