If you  follow me on Twitter  you probably already know that a couple of weeks I went ahead and upgraded the hard drive in my Series 3 TiVo.  In the past, I’ve upgraded several TiVo hard drives using a number of different solutions including, an upgrade drive from  WeaKnees  and  DVRupgrade  as well as the  officially supported expander drive .   Since I’ve tried all of these options, I decided that it was about time that I get my hands a little dirty and attempt to upgrade my Series 3’s drive using WinMFS and a stock hard drive that I purchased from Amazon.com.…