sorry for digging out such an “old” thread but I think this information might be helpful for other people as well. I recently aquired a HP CD-Writer CD4RE / CD4E on Ebay. Nere 6.6.0.x did not recognize the writer. Searching the internet did not yield too much information. I did find a hint in the NERO FAQ concerning an HP 8200 CD writer. This model was not recognized starting ver 5.5.x.x . Nero Support suggest to change WNASPI32.DLL.
This did the trick. I installed Nero 6.6.0.x again and just changed to WNASPI32.DLL to the old 5.5.x.x version. From that moment on, the CD4RE writer is recognized by NERO and it seems to work flawlessly. Much better than the standard software supplied by HP (Record Now).