Approximately 90% of the correspondence we receive regarding failed burns are due to error-prone CD-R media. Because we insist our products create pressing plant-ready CD masters, only specific CD-R brands have a satisfactorily low error rate to burn properly. Look for CD-Rs manufactured at the Taiyo Yuden plant in Japan. If the CD-Rs say "MADE IN JAPAN" anywhere on the packaging, they should work just fine. Below are a few brands that we have had good success with:
Taiyo Yuden, Discmakers, Microboards, Plextor, Apogee, BASF, HHB, and Mitsui Gold.
Avoid common off the shelf, low quality and error prone CDs such as Memorex, TDK, Maxell, Sony, Imation and Verbatum.