I have tried the following at various points in time:
HHB Gold and Silver
MSFL Gold
Apogee Gold
Mitsui Gold and Silver
Quantegy Gold
Memorex Black
I can say that Mitsui Gold has been the best of the lot on a consistent basis. There are some HHB recordings that have been very good, but others that sounded better direct from the HD. Quantegy is okay and Apogee was the most disappointing. The Memorex black I have never recorded on, but have some test discs that others made for me that sound pretty good. However, go to this link and perhaps you will find some additional information that is helpful:
http://www.genesisloudspeakers.com/whitepaper/White%20Paper%20on%20Black%20CDs%20ver%203.1.pdf
HHB Gold and Silver
MSFL Gold
Apogee Gold
Mitsui Gold and Silver
Quantegy Gold
Memorex Black
I can say that Mitsui Gold has been the best of the lot on a consistent basis. There are some HHB recordings that have been very good, but others that sounded better direct from the HD. Quantegy is okay and Apogee was the most disappointing. The Memorex black I have never recorded on, but have some test discs that others made for me that sound pretty good. However, go to this link and perhaps you will find some additional information that is helpful:
http://www.genesisloudspeakers.com/whitepaper/White%20Paper%20on%20Black%20CDs%20ver%203.1.pdf