http://www.teac.co.jp/dspd/product/optical/dv-w516gdm.html

Страница обновления прошивки:

http://www.teac.co.jp/dspd/download/firmware/dv-w516gd/explain.html

This software is a utility that updates the firmware for the TEAC DV-W516GD from firmware revision P4S1 to P4S2

Confirm that the firmware revision of your DV-W516GD is P4S1! Note that this program cannot be used for the DV-W516GD with a firmware revision other than P4S1!