It would be a huge benefit if FRD could automatically skip downloading files that have already been downloaded, or are being downloaded, in the queue by testing if a file by the same name already exists in the queue.
This feature optimizes downloads with multiple mirrors, and multiple file parts. Usually all parts go by the same filenames on all mirrors, and you can only download one part at the time from each mirror (free download services). So you would enter all URLs for all mirrors in the download dialog, and FRD would take care of avoiding duplicated downloads by looking at the file names.
Probably, there would still be some duplications, from time to time, but it would still be a huge help in comparison to having to manually manage positions in the queue.
Thanks for this wonderful program!