Most of the dye-sublimation cassettes have CMYO (= cyan, magenta, yellow, overlay) panels.
Are there any cassettes designed specifically for black & white pictures?
For example (and as jrista pointed out), some modern inkjet printers have additional black and gray inks to help to produce more accurate grayscale tonality — could there be like black, gray, light gray & overlay cassettes?
If not, how is the black & white performance with a regular CMYO cassette? Do some cassettes tend to tint the black & white picture towards to some colour?
Are there any example scans around the web, so I could judge by myself?
Or would I get better results with a modern inkjet (photo) printer? (I'd also like to see how they compare.)
I'm having a hard time finding up-to-date information via Google. wallyk's answer gave some clues, but as the comparison is from 2005, and (hopefully) both dye-sublimation and inkjet printing technologies have advanced, it could be taken as a rough estimate or merely as a starting point.