I am using Memorex CD-R 80 Digital Audio Recordable discs $20 for a 30 set (Office Max) and Maxell CD-R 74 Digital Audio Recordable (that are usually expensive, but a manager at a local store sold me 10 for $1 each). Both work well with a Pioneer PDR/W839. There are other threads on the subject if you do a search under "CDR", "CDR's". I have only burned 5 discs or so and am still experimenting with A/D (tape to CD) recording. The digital to digital copies that I made sounded the same as the original to me.