You can make your drive region free (RPC-1) by using this patched 5X32 RPC-1 firmware (patch by XVI). ACTUALLY UNTESTED!! We are waiting for your results.
To be installed correctly, a drive region code must be selected before using the patched 5X32 firmware.

翻譯一下好了：
You can make your drive region free (RPC-1) by using this patched 5X32 RPC-1 firmware (patch by XVI).
你可以使用5X32 RPC-1的韌體將你的機器解除區碼限制
ACTUALLY UNTESTED!! We are waiting for your results.
未經測試！！我們等待您的結果
To be installed correctly, a drive region code must be selected before using the patched 5X32 firmware.
在安裝5x32的韌體之前，必須先將先選擇一次地區碼，以便正確安裝

如果我沒弄錯的話，就跟以前其他Panasonic DVDrom一樣，可以參考以前的文章