hippiegirl, that guide is outdated and hasn't been updated. it's only true for media 8x and slower. with the newest firmware you should burn too many coasters as noted on that site
for 16x go for verbatims. made in japan yuden's and maxel's quality dropped after 8x but is still above average. tdk has been known for degredation issues. same for ritek. sony media is just above average
for cheap ty's look for made in japan sony 8x + whenever there's a sale. do a price match at sears. they seem to have old stock