If only they would give the same names only to roses of different classes. Unfortunately, no one follows that rule either. I have two grandifloras named Twilight Zone, for instance, and two hybrid teas named Thanksgiving. And I can't even blame those on the French or the Germans. All four hybridizers are American.
As for the CRL, I'm sorry but it just isn't very exciting. I have the 2006 edition. I never bothered to buy another one after that. It was supposed to list every rose in commerce, but most of them weren't really available in commerce. Some of the vendor information was obsolete by the time the book was published because the places had gone out of business, some information was frustrating because the nurseries didn't have mail-order service, and some was iffy. I found it hard to believe, for instance, that every elusive Jackson & Perkins rose I looked up in the CRL was available only at one nursery in Bangladesh. That nursery, in fact, seemed to have every rose on earth available for sale (but not by mail), and I found that highly suspicious.