TiVo Upgrade Center
Mine is a TiVo Series 3 system effort... Using WINMFS I was able to create and write just one xxx.tbk (with WINMFS 1.0.1.1) and it continues to work fine.
I did find a just a few links pointing to 'Spike' and the WINMFS source, but his site appears to be down forever? If someone has a...