From Slashdot news: [COLOR=#1951B9]Even if NEC tells you its impossible, German netzine Golem is reporting hackers have created an updated, unofficial version of the firmware providing DVD+DL (Double Layer) capabilities. Currently model 2100A and 2500A are patchable, more will hopefully follow soon.[/COLOR]

If you happen to have any of these drives perhaps will want to void your warranty and give us a hint whether the firmware really works? ;).