putting tape over the hole works... most disks give you a formatting error... some do work though...

problem is... they only work for a few times. so dont expect any magic... you can use it for emergency transfers... but the best would be originals.

also, if you have a bulk eraser (or a degaussing coil for old CRT monitors or TV's), you can completely erase the magnetic tracks on already formatted 1.44 disks... rendering them as never used, making the chance of them working bigger.