My Two Cents Worth,
Earlier in the year I recieved the official 1.5 update from Panasonic USA.
I then downloaded the 1.5 update from both the Australian site and from Taiyo. I then ran a file comparison check on all three and all three were identical.
Was the Taiyo 1.5 update bad?
Certainly not! Besides they all have built in self checking procedures.
Seems like there is plenty of smoke here!
I can't vouch for the 1.6 though.
Walt