CompuServe Messages

I called the service line on this question, and got no help. My question is on the color RUBINE RED C, in the Pantone color book. This looks on the screen and on the printer almost exactly like RHODAMINE RED. Pantone says that RUBINE is 100% Magenta and 15% Yellow, and Rhodamine is 100% Magenta and 6% Cyan, which are the values assigned when I convert from Pantone Spot colors to the CMYK color model. The problem is that RUBINE, on the screen, on the paper, and everywhere I use it, looks like Rhodamine — a definitely magenta color, while in the Pantone color book Rubine is dark blood red. There are other colors that look far more like Rubine on the screen, so I don't buy the argument that this is the closest match we can do. What I want to know is if I produce a negative with RUBINE red, is it going to match the color in the color book, or is it going to be slightly off-magenta? How do I find this out without actually producing the negatives and trying it? Why can't somebody look at the book and tell me what is going on with this color? For the record, I have perfect unaided vision and I am not the least bit color blind or insane.