diff --git a/src/ps4_libscediscmap.pas b/src/ps4_libscediscmap.pas
index c0f9056c..a54b1fc5 100644
--- a/src/ps4_libscediscmap.pas
+++ b/src/ps4_libscediscmap.pas
@@ -12,29 +12,47 @@ uses
 implementation
 
 const
- SCE_DISC_MAP_ERROR_INVALID_ARGUMENT=-2129657855; //0x81100001
+ SCE_DISC_MAP_ERROR_INVALID_ARGUMENT   =-2129657855; //0x81100001
+ SCE_DISC_MAP_ERROR_LOCATION_NOT_MAPPED=-2129657854; //0x81100002
+ SCE_DISC_MAP_ERROR_FILE_NOT_FOUND     =-2129657853; //0x81100003
+ SCE_DISC_MAP_ERROR_NO_BITMAP_INFO     =-2129657852; //0x81100004
+ SCE_DISC_MAP_ERROR_FATAL              =-2129657601; //0x811000FF
 
-function ps4_sceDiscMapIsRequestOnHDD(path:PChar;param2,param3:Int64;param4:PInteger):Integer; SysV_ABI_CDecl;
+ DM_PATCH_FLAG=$1;
+ DM_APP1_FLAG =$100;
+
+function ps4_sceDiscMapIsRequestOnHDD(path:PChar;param2,param3:Int64;pret:PInteger):Integer; SysV_ABI_CDecl;
 begin
- if (path=nil) or (param4=nil) then Exit(SCE_DISC_MAP_ERROR_INVALID_ARGUMENT);
- param4^:=1;
+ //pret^:=1;
+ Result:=SCE_DISC_MAP_ERROR_NO_BITMAP_INFO;
+end;
+
+function ps4_ioKMruft1ek(path:PChar;param2,param3:Int64;pflags,pret1,pret2:PInt64):Integer; SysV_ABI_CDecl;
+begin
+ //pflags^:=0;
+ //pret1^:=0;
+ //pret2^:=0;
+ Result:=SCE_DISC_MAP_ERROR_NO_BITMAP_INFO;
+end;
+
+function ps4_fJgP_wqifno(path:PChar;param2,param3:Int64;pflags,pret1,pret2:PInt64):Integer; SysV_ABI_CDecl;
+begin
+ if (param3<=0) or
+    (param2<=-2) or
+    (path=nil) or
+    (pflags=nil) or
+    (pret1=nil) or
+    (pret2=nil) then Exit(SCE_DISC_MAP_ERROR_INVALID_ARGUMENT);
+
+ pflags^:=0;
+ pret1^:=0;
+ pret2^:=0;
  Result:=0;
 end;
 
-function ps4_8A828CAEE7EDD5E9(path:PChar;param2,param3:Int64;pflags,param5,param6:PInt64):Integer; SysV_ABI_CDecl;
+function ps4_sceDiscMapGetPackageSize(fflags:Int64;pret1,pret2:PInt64):Integer; SysV_ABI_CDecl;
 begin
- pflags^:=0;
- param5^:=0;
- param6^:=0;
- Result:=0;
-end;
-
-function ps4_7C980FFB0AA27E7A(path:PChar;param2,param3:Int64;pflags,param5,param6:PInt64):Integer; SysV_ABI_CDecl;
-begin
- pflags^:=0;
- param5^:=0;
- param6^:=0;
- Result:=0;
+ Result:=SCE_DISC_MAP_ERROR_NO_BITMAP_INFO;
 end;
 
 function Load_libSceDiscMap(Const name:RawByteString):TElf_node;
@@ -46,8 +64,9 @@ begin
 
  lib:=Result._add_lib('libSceDiscMap');
  lib^.set_proc($95B40AAAC11186D1,@ps4_sceDiscMapIsRequestOnHDD);
- lib^.set_proc($8A828CAEE7EDD5E9,@ps4_8A828CAEE7EDD5E9);
- lib^.set_proc($7C980FFB0AA27E7A,@ps4_7C980FFB0AA27E7A);
+ lib^.set_proc($8A828CAEE7EDD5E9,@ps4_ioKMruft1ek);
+ lib^.set_proc($7C980FFB0AA27E7A,@ps4_fJgP_wqifno);
+ lib^.set_proc($7E5D5EA039F0438B,@ps4_sceDiscMapGetPackageSize);
 end;
 
 initialization