But if I recall correctly, there is still a bug where things like the "plays" count are still there, stored on a per-FID basis, after you delete a song.
The operation of downloading a FID should erase that data; if the bug is still there in 2.0-final, rereport it. But in that case, you can use
dd if=/dev/zero bs=512 skip=4096 count=28672 /dev/hda3
to zero out the per-fid dynamic data without touching the other stuff. Be careful typing that, as you will hose everything badly if you do it to the wrong partition.
Peter