Both firms report increased sales of their cards, which come in any form and are becoming ubiquitous at trade shows. General consensus in the biz world: why spring for color brochures at $5 a pop when CD cards average a buck each? For much more cash–$3,000–New York’s HYLife Productions can squeeze up to eight minutes of video on its cards. It worked great for talent-management group BerryFine Productions, which used footage from a Manhattan client’s play to land a Durham, N.C., gig. “Without a doubt, it’s a tremendous tool,” says BerryFine’s Jan Boger. Vassar College, in Poughkeepsie, N.Y., ordered a batch from Carr to elicit donations before the class of 1979’s upcoming 25-year reunion. The disk gives alums an updated tour of campus and photos from their college days set to disco. Too bad the music didn’t get an upgrade, too.