This was tested by formatting a disk, as you can see in the pic. It formatted perfectly and I loaded the directory. I did not perform any other tests or load any games because I do not have any on that size of disk.
The item "Commodore 1581 disk drive Tested and Working" is in sale since Sunday, October 16, 2016. This item is in the category "Computers/Tablets & Networking\Vintage Computing\Vintage Manuals & Merchandise". The seller is "bhusek1" and is located in Goshen, Indiana. This item can be shipped worldwide.