C3PX said:
Yeah, we all know the data layer of the disc is only protected by the label, but the fact of the matter is the top side is NOT more prone to damage, because the ploycarbonate layer scratches VERY easily. The label, are usually very sturdy and resistant to damage.

Read what I wrote again: scratches on the bottom side can be repaired, scratches on the top cannot. That is why I still think it's stupid to put discs down on the label side. I've had far too many discs ruined by scratches to the label side, but few if any have ever been permanently damaged by a scratch on the bottom. A little bit of disc polish and they play just as good as new again.