How to extract this Diamond rom?

[kartam]

I tried NBSplit and I don't know what values give to -data and to -extra. Tried hermes or kaiser but then I couldn't dump the rom.

[MickyMax]

I've successful dump it with the same method than the Kaiser... :)

[freepk]

-data 2048 -extra 8

[!Aman!]

use kaiser kitchen...easiest way!!