Problem? with Yamada DVR 9300 hack

[mrg72]

I input the hack I found here for my Yamada DVR and everything worked like the posts said they
would except I have found 4 movies (so far) that it will not play. I bought the system in Germany
so it was a region 2 machine, I applied the hack and tried a couple of region 1 discs which played,
then I rented a couple of region 1 discs and it wouldn't play them. After that I started going through all of my own discs and found 2 more that won't play on my machine. 1 actually says that it was not designed to play on a modified machine instead of saying the usual message of wrong region code. Does anyone have an updated hack for this machine??

[guns1inger]

For a while, US discs used a protection method called RCE, which was the opposite to normal region codes. For standard region codes, the player queries the disc, looks at the region, and decides to play. In the case of a region free player, it really doesn't care what region it gets back.

RCE copy protection works the other way. The disc queries the player and compares regions. Even a region free player has a region itself. If the region on the disc and the region on the player don't match, the disc wont play. Some players get around this by allowing you to actually change the region they appear to be from.

DVD Decrypter can get around RCE protection for discs you own by changing the region they are hunting for to your region. Unless you can change the apparent region of your player, you have to change the disc my making an RCE adjusted duplicate.