The +R is nearly always CMC E01, and the -R is nearly always CMC AE1. The results I get from HP media has always been excellent, as long as your burner has decent firmware support they should burn very well, but some burners have poor support for CMC. Here's my two most recent HP burns. If you are not familiar with the tests below, the results are very good:
HP +R 8x, 8x on Benq 1640 - this is a typical burn on this drive.
And the same media on my Liteon 160P6S, before HyperTuning:
If you can tell us your burner, it would help in telling if it supports CMC well or not.