Just installed the newest 0360 2005_2 DVD on my older -C- unit (Hardware 053 / Software 0100).
The upgrade took about 5 minutes and the user interface of the unit is now the same as the -D- version.
It displays the clock in the bottom of the screen and the power button is now morphed into a mute button. Press it 3 seconds to power off the unit.
On the internet they say it isn't possible to create a personal backup.
BUt U managed to create a backup of this DVD, so it's still possible to make safety backups on Dual Layer DVD's (ofcourse only for own use if you already bought the original).