Hello Tivoland. I have 2 identical TiVo Premieres with the same Hard Drive capacities, one with a bad hard drive and the other with a bad LAN port. I have swapped the hard drives leaving me with one fully functioning unit. The issue is that all the recordings from the functioning HD disappeared. I didn't get a prompt to reformat the drive or any message at all it just booted up normally and now is showing me 0% full. I have tried to put the HD back in the other TiVo but the recordings are missing there as well. Does anyone know what happened and how to retrieve the recordings?