As others have explained, CDR-Audio/Music blanks are designed to work with component CD recorders which were designed to work ONLY with such discs. This was part of a royalty scheme implemented by federal law, the Audio Home Recording Act of 1992. The discs are manufactured with a flag that allows recording by the CD recorder. The higher expense for the blanks is because of the embedded cost of royalties. When a consumer copies music using such recorders and discs, there is a statutory presumption of non-infringement of copyright. BTW, CDR-Music blanks will work in any CD writer, while regular CDR blanks will not work in standalone CD recorders. I have a Denon CDR-W1500 that still works great after more than 20 years, although I haven’t used the recording function for years.
where and how to find blank "music" CD's
I recently came into possession of a TEAC LPR 400 turntable that can copy vinyl to CD. The problem is that apparently, I need RIAA (recording industry of America) approved music CD's and not the data CD's that are more common. The music CD's have a flag embedded in them that the manufacturer paid royalties to RIAA for lost revenue. Does anyone know where to get them, and/or how to tell the difference between the two if you are on ebay or similar site?