To quote: Finally I was able to find the time to port my dumpers on 4.21 CFW. There were some problems while porting from 3.55 to 4.xx and hopefully all of them were fixed.
These dumpers are not required to work with previous tool called Data Ddumper because they just write all data directly to the corresponding file on /dev_hdd0/tmp. All dumpers were tested on 4.21 REX and should works fine if you do the process correctly.
Example from KDSBest in REX 4.21:
; "Kindoms of Amalur"