Naming conventions:
Product_type_h/wRevision_s/wRevision_ValidArea_language_datecode.extension
Product_Howto_language_ Theme-with-description.extension 



DFL-2500_fw_revA2_2-27-03-25_all_en_20111209.zip	Firmware 2.27.03.25

DFL-2500_fw_revALL_2260002_ALL_en_090923.zip		Firmware 2.26.00.02

DFL-2500_sw_revALL_2200212_ALL_en_080806.zip		Firmware