Sparq 1.0 Gigabyte Cartridge: PC Formatted (zip disk)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>1 Gigabyte of storage capacity</li><li>PC formatted</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51sISLFvYPL.jpg" noproxy>