請問有人改過嗎?

-Ricoh MP9120A (12X/10X/32X/8X) 1.00, 1.10, 1.20, 1.30
^^^
OK! 更新firmware至 v1.3

但改成全區的程式無法執行
You can make your drive region free (RPC-1) by using this patched 1.30 RPC-1 firmware (patch by Dean).
A Ricoh utility is available to set the drive from DMA mode to UDMA mode.
RPC-2

會出現
<NG> <NG> <NG>
的錯誤訊息

請問有人成功改成全區嗎 ?

此外
請問 Ultra DMA 和 Multi World DMA 為何意?
有何不同


Thanks a lot