As many people were complaining that they wanted a firmware capable of doing quality checks AND bitsetting on all plus media types, I started modifying the 3.04 firmware that everyone is playing with at the moment.
I copied the bitsetting code from MadDog’s 1.f3 firmware and made it work on the 3.04 firmware.
Please consider that - although this firmware has been tested - this is a highly experimental firmware that may still have some bugs. If you damage your drive by flashing this firmware, neither me nor CD Freaks can be held responsible for this damage. Don’t RMA your drive in this case, but buy a new one.
Download NEC ND3520 3.04 Bitsetting firmware here. Three files are included in the archive, containing a version only with added support for bitsetting, a fast version removing riplock and a version with RPC1. All firmwares are bundled with Binflash 1.16 Win32 GUI version, but they can all be flashed with any Binflash commandline version.