From http://www.amusicdirect.com/products/de ... =AMFCDR25B:
Anyone who has ever damaged a CD-R through abrasion or excessive exposure to heat or light knows that CD-Rs are an imperfect technology and it’s all too facile and common to lose priceless data. For ocassions when you can’t afford to endanger your data, Mobile Fidelity Sound Lab is proud to introduce the Ultradisc CD-R. Our 24KT Gold ULTRADISC CD-R is designed for professional, data critical, music and graphic archival applications, and all other data storage where there is no margin for loss or error. These specially-gold-plated ULTRADISC CD-Rs ensure excellent reflectivity, are non corrosive, and have dramatically enhanced resistance to light and heat. Additional features include instantaneous pit burning (burst burning) for superior pit formation and extremely low to no error rate; and an added, patented, scratch resistant, protective surface.
Once again, audiophiles declare something "imperfect" in order to offer some sort of "improved" version. Blech.
BTW, is it just me or is "facile" in the first sentence a really unfortunate synonym for "easy?" Dictionary.com insists that "easy" is the first definition of the word, but I thought that the "artificial" definition was far more common.