Thanks for pitching in for me Doug! I am the someone looking for an 8" boot disk. Here some details: The manual says the OS's written for it are: Xenix, Oasis-16, CP/M-86, and MP/M-86. The drive is SS/DD, but the boot track needs to be SD because the boot loader can handle only SD. I am also looking for its diagnostics disk called ADX. The system is designed like a file-server. The machine can't boot off its 8" hard drive (Quantum '40), and I fear it has a head crash. I found after a few power-ups that the belt was off the motor spindle. The damn belt has to be held in place until the drive gets to speed, otherwise it promptly comes off at power-up. Anyone with a solution for this stupid hard drive? Thanks, Edwin At 06:26 PM 12/11/2000 -0800, you wrote: