I have some audio CD's that I burned in 2003 that are still good. They are CD-R's that were burned, at the slowest burn speed of the CD burner (probably 4X). Most of the older CD-R's I have, that I burned, are either TDK or Verbatim. The audio CD's I have burned in the last 5 years are all on Taiyo Yuden CD-R's. Taiyo Yuden is considered the best.
However, I have worked with a user in England a couple of years ago that had failing burned discs. I don't know what blanks that had been used.