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



DP-301Pplus_fw_revD_3-75B2_all_en_090722.zip	Firmware for DP-301P+ revision D.
								Firmware für den DP-301P+ Revision D.

DP-301pplus_fw_revB_200_ALL_en_020122.zip		Firmware for DP-301P+ revision B.
								Firmware für den DP-301P+ Revision B.

DP-301pplus_fw_revC1_322_ALL_en_041221.zip	Firmware for DP-301P+ revision C.
								Firmware für den DP-301P+ Revision C.

DP-301pplus_fw_revC1_330_ALL_en_050129.zip      Firmware for DP-301P+ revision C.
								Firmware für den DP-301P+ Revision C. 

DP-301pplus_fw_revD_370_ALL_en_080909.zip		Firmware for DP-301P+ revision D.
								Firmware für den DP-301P+ Revision D.