On my Windows XP SP3 PC, the drive was up and running within seconds of being plugged in. It read about 50 diskettes from my 90s' backups of accounts and payroll without any hitch on all but two of the diskettes. Though I cannot rely on my memory totally, I recall having trouble recording onto diskettes prior to the disk drive on the PC I was using at the time failing completely. My hunch is that these two diskettes were corrupted or improperly formatted and that is why the USB drive would not accept them. Certainly I do not criticise the USB drive at all for not reading them.
So, I am pleased to have been able to transfer those backups without fuss or hold-up onto up-to-date media. (Quite what I shall ever need to do with such historic data is another question.) My impression was that the USB drive accessed and read diskettes every bit as quickly as did the built-in drives of the PCs on which the back-ups were created. I have not tried the drive on a Windows 7 machine, as perhaps I should have done in order to contribute more than I have to this review.