Finder copy doesn't copy all files

I've got the same problem when copying multiple large files from the desktop to a network drive on Windows Home Server (using drag/drop). The files are about 1gb each, and if I copy more than one at a time, at least one will dissapear on the target machine. This is VERY repeatable.

When I watch it closely, I can see temporary files for all files appear, and the number of items, and the total size reported in the copy status on the Mac are correct. In fact, it takes about the correct amount of time for the total size copied. However, when the copy is complete, some of the files on the target drive vanish. There is no error dialog, files just go poof. Dragging the missing files again works, as long as no more than one is copied at a time.

A test with a few small files works fine. This only fails with large files. The total copied is less than 2gb, so this doesn't seem to be a FAT32 problem. There is ample space on the destination drive (over 1Tb free). The Mac is on a wireless 802.11N lan.

- Bruce

I disabled named streams for SMB shares, relogged, and the problem still occurs.

- Bruce

Solution: Using a 3rd party finder replacement such as Forklift, or Pathfinder works perfectly. I've tested these and they both work fine.

I'm getting the exact same problem. I was hoping 10.6.4 would fix this nasty bug, but it hasn't.
Pretty ridiculous this got through testing once again. SMB shares on a Mac are still a disaster.