USUS library

I've found someone who has the entire collection of disks from USUS, the UCSD Pascal User Group, and he's cheerfully coaxed his Linux box's disk parameters into reading the 800K 5 1/4 Pinnacle Systems disks he had. I hope to decipher the .SVOL "disk volume in a file" method they were stored in, and post them to my web page soon. He also mentioned he has source code on 8 inch disks from an Ohio Scientific, Inc. machine. He thought hed have more trouble finding a way to read those because of its scheme of using an 6820 parallel port controller and a 6850 serial port controller to access floppies. Is that true? Should the normal scheme for connecting a Shugart-y drive to an old AT-era WD controller work to read these old disks? - John