olepin wrote:Will an external drive allow me to do this. Is there a recommended unit that works, no fuss.
Some USB drives work, other do not because they don't support Double Density at all (HD only). Nowadays most brand new USB drives are OEM, and then here is no reliable way to know beforehand if it works or not. Either try to get an older drive (e.g., SONY branded), or just try. They are rather cheap anyway, so you can get a different one if it doesn't work.
Most USB drives also require that the disk is correctly formatted as 720K with 9 sectors per track.