Firmware information
  CD−R CD−RW DVD−R DVD−RW DVD+R DVD+RW DVD+R DL DVD−R DL DVD−RAM
Strategies 1.07 1.09 1.17 1.13 1.16 1.13 1.07 1.03 A.07
Bitsetting   No No Yes  
Date1 (*) 2006-03-28
Date2 (*) 2005-11-27

(*) 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 is the stock ND7550A firmware K072