HL-DT-ST DVD+-RW GSA-H21L writer has been tested with Burn4Free DVD Burning Software.
Update DVD+-RW GSA-H21L firmware for free
Update HL-DT-ST GSA-H21L Firmware
HITACHI-LG DATA STORAGE download drivers and firmwares links:
Download driver - firmware
(included HITACHI-LG DATA STORAGE drivers)
HL-DT-ST GSA-H21L CD DVD Writer Firmware W516 was presented for free download to install, update, manage HITACHI-LG DATA STORAGE CD DVD HDDVD BLURAY. Please check your burner device model, operating system, firmware version according to HL-DT-ST DVD+-RW GSA-H21L CD DVD Burner Firmware W516 WINDOWS VERSION USERS