I use the Lyman log binder, been using it since 1980 with well over 100k loadings entered and not one "crash" to erase everything. pages easily photocopied and added. I keep a page for every caliber I have ever loaded and if I have more than one gun in a caliber (ex. 5 45-70's) they each have their own page as well. Every loading session weather it is 4 or 5 rounds for a test or 1500 pistol rounds has its own entry.