According to Impress and IODATA Japan the new firmware for DVD-R DL writing will become available on the 18th (for most places tomorrow). As Allways DLing the firmware will require a Serial Number provided by IODATA.
I'm sure they will spread very soon, once they are available on IOData's site
If anybody has the new firmware, please e-mail it to me (email@example.com) so I can place it on the firmware page. Thanks!