A look at the smallest hard disk drives that were made including the rare Toshiba MK4001MTD 0.85 inch hard disk. Disassembly of a Samsung-Apple dual logo 1.8 inch hard disk and powering up the mechanism while open. Also comparing to the 1 inch Microdrive in Compact Flash form. According to The Guinness Book of World Records the Toshiba 0.85 inch was the smallest hard disk ever made. Which was found inside the Nokia N91 music phone. Photos of hard disks including the photo used in this video, https://www.wykop.pl/wpis/37748863/uwaga-nadaje-komunikat-tak-wygladal-dysk-hdd-w-nok/