
Well, the last batch of DVDs I've used were both Sony DVD-R's and Nextech DVD-R's. I burned all content at 8x and when I would label them I would use only standard labels only (no hub, as the center of both these discs were clear). These discs all have problems with pixelization and so forth, And by and large the problems tended to be immediate.
Currently, I am in the process of re-burning a lot of my stuff using HP DVD-R's at 4x. The hub for these allows for labels to be put on it, and since I'm both a stubborn and aesthetic person, I'm printing full face labels for these (Feel free to yell at me, though I doubt you'll change my mind

I suppose in the future I'll invest in printable discs and a printer that can print on them, since even if the labels don't damange the disc, they're quite frankly a bitch to print out. The calibration tool that came with the program (exPressit... ugh) seems to do nothing, and I don't think I've gotten a perfectly centered label yet. I assume that printers that print directly on to discs do a better job?
Anyways, this thread has some great information on it. Hopefully other people will read it and learn more than I did.