I'm still getting lots of Server Busy return codes. But I think that's because my WD expander is going bad. E.g. it sometimes takes 3 or 4 attempts at booting (doing a power cycle each time) before I get the TiVo critter splash movie. Most of the time it goes to a blank gray screen instead. Anyway, with the v0p7j version I still have Server Busy, but the transfer will sometimes recover. For example, one file succeeded on the 4th retry. Once a transfer starts properly, it will always run to completion. It never hangs up in the middle. So my initial reaction is that the retry code has helped. I've been able to retrieve all my programs off the TiVO and will replace the HD soon.