My experience has shown the best is the TDK professional (expensive) are the best for quality and worst for long term reliability. The blacks are a close second in quality and are not great long term but far far better than the TDK pro. The MoFi gold CDRs are very good but still a significant step away from the blacks. They are excellent (thus far) in terms of reliability.
Personally, I'm using Mitusi gold CD-Rs. Very inexpensive, excellent long term reliability. Not as good as the blacks--but still very very good.
Personally, I'm using Mitusi gold CD-Rs. Very inexpensive, excellent long term reliability. Not as good as the blacks--but still very very good.