A Photopass share is where a group of people on the Dis figure out that they are all going to DLR (or WDW) around the same time and instead of each of them purchasing the Photopass CD seperately and paying $79.99 each, one head person purchases the CD. After they all go on their trips and take tons of Photopass pictures, they each e-mail their Photopass ID numbers to the head person, and she/he puts them all onto one account. She/he then copies the correct number of CDs for each person and mails them out. The $79.99 is added to the price of postage and blank CDs and then divided by how many people are in the share.. So each person pays a whole lot less and has their CD full of PP pictures that they had taken on their trip!!
HTH and makes sense!