Single pass and aggressive buffering seems to cover what I remember, but it worked better than it I expected, even on high speed drives or SSD to high speed drive. They may have had other tricks, it's been a while now.
The other thing that I liked is it's non-blocking - you can continue doing copies while one is in progress, if it's to the same destination it gets added to the queue in progress. If different destination it goes in a new queue that waits for the first to finish.
The other thing that I liked is it's non-blocking - you can continue doing copies while one is in progress, if it's to the same destination it gets added to the queue in progress. If different destination it goes in a new queue that waits for the first to finish.