DVR-K104 or DVR-k04 firmware upgrades

Due to a recent clearance on notebooks at Office Depot, a whole lot of people have aquired these drives. These systems have the Dual Layer capabilities disabled, and many people, including myself, are looking for any sort of firmware upgrade that will enable this feature.

Pioneer advertises these as dual layer capable drives, but SOny has disabled the feature. So, here is my list of questions:

1 - Why isnt there ANY firmware upgrades available for this drive? It seems like all other pioneer drives have some sort of firmware upgrade available, whether from the factory, or a modified version.

2 - When people modify the original firmware, how do they go about doing it? Can it be done on this drive?

3 - Can a DL capable drive have the firmware backed up, so it can be applied to a drive with DL disabled?