This is what I get when running DVRflash:
Device parameter was not given, detecting all DVR drives:
Device : A:
Vendor : PIONEER
Model : DVD-RW DVR-115D
Revision : 1.13
Status : RPC-2 (region locked)
Region : 1
Changes : 4 region changes remaining
4 vendor resets remaining
state is 'Region set'
Now run DVRFlash again, from the command prompt, using
one of the device(s) listed above as first parameter
The Unix files for the firmware update are A0814001.118 and the other one with underscore and an apple.