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


DSL-504t_fw_revALL_200b01t01eu20050630_ALL_en_050630.zip	Firmware for DSL-564T (English/German).
								Firmware für das DSL-564T (Englisch / Deutsch).

DSL-504T_fw_revALL_100B02T02_EEU_PL_040610.zip			Polish Firmware for DSL-504t.
									

DSL-504T_fw_revALL_B01T16-GPL-release-Sources_ALL_en_040826.tgz	  GPL-Licence for the Firmware.


Lizenz_GPL-DE.pdf						GPL-License (German).