Generation of all previews and snapshots took approximately one week when running in 18 simultaneous threads. There were generated 371234 flash video previews, 248028 mp3 audio previews, and 1879572 jpeg snapshots. Previews fill 806GB and snapshots 30GB. Attached is a list of 1758 shard uuid's which failed. A small number of these may be fake uuid's added by hand to test the current queue size.