I was looking for the data sheets as none are supplied in the packs and after opening and installing a pack of 3000B in my NPC Land back this morning I had a question so I went looking when I saw a 'New' that caught my eye. Is fuji-usa just out of touch? They list the 4x5 size as 'New' for FP-100B but of course there are lots of threads around saying it has been discontinued, at least in Japan, in both sizes. I'm happy that I can seemingly buy FP-100B and FP-3000B at present and with expiry dates of 2011-11 for the 100B and 2011-12 for the 3000B it seems to be fairly current stock. Actually the FP-100C I last bought was dated 2011-05 of all things... http://www.fujifilmusa.com/products/professional_photography/film/fujifilm_instant_films/fp_100b/ There still isn't a data sheet which mentions the 4x5 size so I'm unsure but the 'New' caught my eye and I swear it wasn't there the last time I looked.