Buying a good disc is not a simple matter of using a “name brand” disc, or paying for the most expensive disc on the shelf. These factories are mostly present in Taiwan, Japan, Singapore, Malaysia, China and India. There are more, but those are the largest ones. The best media generally comes from Japan, Taiwan and Singapore. The worst typically comes from China and Malaysia.
Understand that the blank disc brand means almost nothing. Apple is a great brand, but they do not make their own discs, instead outsourcing to a company like Mitsubishi Chemicals. Common companies like Memorex, Maxell and Imation all outsource to media vendors.
It is the media ID that is important, as it reveals the disc manufacturer. Unfortunately, this is not written on packaging or anywhere else. Companies want consumers to be oblivious to this sort of behind-the-scenes information.
To learn the media ID code, a blank disc must be put into a computer DVD burner drive and the ID read by a special utility. Some burning software reads the code, such as ImgBurn. There are also a handful of freeware tools available: DVD Identifier (Windows), DVDInfo (Windows), DVD Media Inspector (Mac OS X), and dvd+rw-mediainfo (Linux).