I thought Ektapan sounded familiar, so I checked my Kodak Master Darkroom Dataguide (circa 1970) and sure enough found Ektapan 4162, available in sheets, 70mm rolls and 3.5" rolls.
I've got 5x7" Ektapan in my film fridge, I need to try it. I recently got out a Polaroid pack film, exp date of 2002, slapped it in my RZ67II, it still works. Amazing, much lower contrast but the color is good.
