Here's the story. I bought and then upgraded a used sony svr2000 with two 120gig HD's with the success of that upgrade I attempted to upgrade to a 9th tee airnet card to access the internet wirelessly for the daily programing and after some bad advice, or my lack of understanding telnetting into the tivo and ping it. When I pinged it it rebooted and was no longer able to call out using the modem but I could use it for manual recording. I bought another svr2000 a few years later and this time I used a 9th tee ethernet card and it successfully uses my broadband cable for the daily calls. My question is that since my two 120 gig HD's are still good and already tivo formatted, can I simply put them in the other svr2000 without doing all the steps I originally did to increase the storage capacity? I think all the mods were to the HD's and not the motherboard. Keep in mind it was YEARS ago when I did this upgrade. I do still have the mfstool cd and don't have a problem redoing the steps, I'm just looking for the easy way out. I just don't know if the bigger drives are "married" to the old mobo.