The extra 64K can hold TRSDOS, freeing all floppy drives for data diskettes. In 1988, it moved into the data storage industry, manufacturing 5.25-inch floppy diskettes. By 1977, IMSAI's product line included printers, terminals, floppy diskettes and software. SOS-formatted diskettes place a loader program in block zero. The product shipped on seven 1.44 MB diskettes. It reads from and stores backups on zip diskettes. IBM would distribute bug fixes on diskettes called PTF diskettes. However, later versions of MS-DOS and CP/M allowed formatting of diskettes. They seized 200 account books and 167 computer diskettes. Little would mail diskettes in baggies (food storage bags) to the first customers. Cleaning the computer without cleaning all diskettes left the user susceptible to a repeat infection. Or the data diskettes could be transported physically to the location of its destination. These adventures range from very simple, 20-room outings to complex works spanning multiple diskettes. The objective is to collect a certain number of diskettes before the rival player.