I have the Revised Edition of "Great Sausage Making Recipes and Meat Curing" by Rytek Kutas. Copyright 1984. I believe the latest edition is the fourth, and I'm pretty sure I read on the forum here somewhere, that it contains quite a bit more new information. I'm curious what more it does contain, and do those of you that have it and might have had an older version, feel it is worth investing in? Thanks.