Firmware information
  CD−R CD−RW DVD−R DVD−RW DVD+R DVD+RW DVD+R DL DVD−R DL DVD−RAM
Strategies 1.02 1.13 1.16 1.06 1.12 1.13 1.10 1.11 1.06
Bitsetting   No No Yes  
Date1 (*) 2009-10-06
Date2 (*) 2009-07-17

(*) 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 is the stock Sony DRU-870S firmware 1.61