According to the sticky label sticky, a full conclusion has not been made as to whether or not labels cause long term problems. I have disks which are 3 years old with labels that still work perfectly. I also have disks that are 3 years old with no labels that now don't work. How can labels cause balance problems when they are applied with a kit that centers them perfectly? I've seen many pressed disks with labels applied to them as well and they don't have balance problems. I didn't know about proper storage though, so thanks for the tips. Just to be on the safe side, and because they are more durable, I ordered 100 big DVD cases.
If it is true that labels cause problems, or pose a risk, then what do you use to label disks with? After reading the sticky it seems the culprit is the moisture from the label caused by heat from the laser. But I noticed when you first print a label it is wet and bends very easily, it doesn't hold shape, so I assumed letting the ink completely dry before the label was applied would solve the problem as the label has already expanded or contracted due to the wetness from the ink. I mean, the labels don't change shape before they are applied, even in hot storage conditions.