檔案在這裡:

http://www.teac.co.jp/dspd/download/firmware/cd-
w512e/fwcdrome.html

不過網頁有一段英文
Updated Firmware Revisions and Utilities List
Name Software Version Date
UpdaterW512E.exe 2.0.0.0 2003/03/27
This program updates the firmware revision from 1.0A/B/C/D/E /F/G/H/J to 1.0L.
Note that this program cannot be used for the CD-W512E with a firmware revision other than 1.0A/B/C/D/E/F/G/H/J.

大概是說只有支援w512e 1.0A/B/C/D/E /F/G/H/J 升級到1.0 frimWare

我沒有勇氣去嘗試看看
不知道有沒有人有勇氣的阿
備註一點:更新firmWare還是有風險的喔