Hints on DVD Region Free v3.39 for those who are working on it.

0041DF26 55 PUSH EBP
0041DF27 8BEC MOV EBP,ESP
0041DF29 6A FF PUSH -1
0041DF2B 68 203D4200 PUSH DVDRegio.00423D20
0041DF30 68 80DE4100 PUSH DVDRegio.0041DE80
0041DF35 64:A1 00000000 MOV EAX,DWORD PTR FS:[0]
0041DF3B 50 PUSH EAX
0041DF3C 64:8925 000000>MOV DWORD PTR FS:[0],ESP
0041DF43 83EC 68 SUB ESP,68
0041DF46 53 PUSH EBX
0041DF47 56 PUSH ESI
0041DF48 57 PUSH EDI
0041DF49 8965 E8 MOV DWORD PTR SS:[EBP-18],ESP
0041DF4C 33DB XOR EBX,EBX
0041DF4E 895D FC MOV DWORD PTR SS:[EBP-4],EBX
0041DF51 6A 02 PUSH 2


OEP and stolen bytes for the interested.