Originally Posted by Smarty-pants
Nothing wrong with 4.0. DO IT!
Finally took the plunge and did it.
Steps I followed...
Pulled 4.0 iso off Toshiba's support site
Burned with Nero 8 to CD at 8x with verification
Powered up my HD DVD player
Loaded FW disc and hit "Yes" to upgrade
Let the Ver Up run its course
Player opened the tray and shut down
let the stand-by light go dark
Waited an additional minute
Plugged back in and FW now shows 4.0!
Thanks to JoeRod for blazing the trail!