About: ForMAX.v1.2.SHK This is a freeware ProDOS 8 system application that does very fast mass formats with any 800k ProDOS floppy disk using one or two disk drives. It allows a format interleave selection of 1:1 thru 1:4 also. This utility is unique with its interleave select options. I don�t know of any other program that offers such an interleave selection It�s a very small ProDOS application around 17k or so in size. About the same as it�s archive is.