I'm working with a legacy system that is running DOS 6.22. This has an upper limit of 8.4 GB on hard disk capacity. I haven't been able to get my hands on any 8.4 GB or smaller drives for a reasonable price but I do have access to a large number of 9.5 GB drives. I was wondering if there was a way to limit the drives so that DOS 6.22 would work with them. I cannot change the BIOS version and I cannot use a different version of DOS. I was hoping you guys would know if if was possible to edit the hard disk firmware or maybe turn off a read head. Any suggestions?