Mmm.. I suppose I could have the script do both drives in parallel, which would cut the time for the first sift down by quite a bit. But that's a one-time only event (per player), so no big deal. And I don't have a two-drive unit here to test with, so I think I'll just leave well enough alone!

A subsequent "sift" should be near instantaneous, unless a thousand or so (or more) tracks are modified with emplode/emptool.

Cheers