I disagree. Hard drives are very unstable. We’ve had too man go down. Archiving on a medium with no moving parts is the best.
Currently we shoot on minidv and when we’re done we put it on a shelf. Perfect archive solution.
With p2 I don’t know what to do. The file sizes are unruly. Since fcpx handles mp4 so well, I would like to archive it in that format. Makes sense to me. Large HD file sizes? No problem-o!