I concur in Jerry's response. I have used the NMC CIS for many months now without any problems whatsoever. I print basically on Epson Watercolor paper in Super A3-B size, seems like forever without a refill. Have had prints in a shop window, direct daylight but not in the direct sun path for several weeks without any evident fading or color shifting. As to ultimate longevity, who really knows? Everything one hears is actually a best-guess estimate even though based on some scientific test as atmospheric conditions as well as display conditions differ throughout the world. As Kharim Hogan said, check back in about 10 years. Konrad Poth > I'd get the nomorecarts system Better design, no resetting the chip, > because it always reads the cartridge is full. Get it (rebranded Niagara > now,) from http://www.mediastreet.com > > Jerry - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.