Firmware information
  CD−R CD−RW DVD−R DVD−RW DVD+R DVD+RW DVD+R DL DVD−R DL DVD−RAM
Strategies 1.03 1.09 1.173 1.093 1.163 1.114 1.101 1.04 1.139
Bitsetting   No No Yes  
Date1 (*) 2007-02-26
Date2 (*) 2007-02-26

(*) 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 Optiarc AD-7633A firmware 1.00b. The lettter b was used to indicate that this is the second known 1.00 firmware.