PsyMan wrote on NGEmu’s forums today:

drkIIRaziel “saw the light” and decided that if we don’t make a release now we may never do, so here it is:
http://emudev.com/drkIIRaziel/uploads/nulldc_100b1_5.rar
Be aware that this is more like an ALPHA than a BETA (thus the version number) so some things might be broken.
Read the included documentation and follow the instructions there if you encounter any problems.
Have fun 🙂

Included in the new features is native joypad support, so games like Jet Grind Radio work properly, and proper CDDA support, so sound now plays properly and the broken CDDA no longer sets off certain games’ copy protection (Ikaruga, Rez).