Firmware information
  CD−R CD−RW DVD−R DVD−RW DVD+R DVD+RW DVD+R DL DVD−R DL DVD−RAM
Strategies 1.01 1.05 1.02 1.08 1.03 1.11 1.01 1.01 1.11g
Bitsetting   No No Yes  
Date1 (*) 2005-10-12
Date2 (*) 2005-08-17

(*) Date 1 seems to be related to the strategy version while date 2 seems to be related to the main firmware code

The following firmwares are included:

This firmware is based on the original NEC 1.06b firmware for the ND4550A. The letter b was used for this firmware to indicate that this is the second known 1.06 firmware for this drive.