What are audio CD-Rs?
An audio CD-R recorder is similar to normal CD recorders, except that it’s more expensive, requires special audio CD-R blanks that cost considerably more (roughly $25 vs $6) and only hold 60 minutes of data, and may employ SCMS (Serial Copy Management System) to prevent making copies from a copy. The difference in price is due to licensing agreements and volume. The manufacturer pays a royalty to a studio consortium under the assumption that everything recorded to an audio CD-R is pirated material. The technology is identical; the “audio” discs just have a mark that says a royalty has been paid. A less expensive solution for audio recording is to get a good audio digitizer, record onto a hard drive, and then write the recorded data onto a CD as digital audio data. See sections (3-12) and (3-13).
