I was looking for an old version of a software which someone agreed to send me. It is for the now defunct NeXT. I received the first part in this format (iso.001) and it's about 4 MB. I know I need to use Toast to join the other segments so as to burn it onto a CD and use it on my NeXT but I have no clue as to how to do it. I have an iMac, Tiger and Toast 6.