Blackbox Inno Setup Script

[kannasuki]

If archives.ini have only Data1-4 works, but with Data5 fails in different percentage.

if not ISArcExtract ( 0, 20, ExpandConstant('{src}\Data1.bin'), ExpandConstant('{app}'), '', false, '', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}'), False) then break;
if not ShowChangeDiskWindow ('Please Insert Disk 2 To Continue..', ExpandConstant('{src}'),'Data2.bin') then break;
if not ISArcExtract ( 0, 20, ExpandConstant('{src}\Data2.bin'), ExpandConstant('{app}'), '', false, '', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}'), False) then break;
if not ShowChangeDiskWindow ('Please Insert Disk 2 To Continue..', ExpandConstant('{src}'),'Data3.bin') then break;
if not ISArcExtract ( 0, 20, ExpandConstant('{src}\Data3.bin'), ExpandConstant('{app}'), '', false, '', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}'), False) then break;
if not ShowChangeDiskWindow ('Please Insert Disk 2 To Continue..', ExpandConstant('{src}'),'Data4.bin') then break;
if not ISArcExtract ( 0, 20, ExpandConstant('{src}\Data4.bin'), ExpandConstant('{app}'), '', false, '', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}'), False) then break;
if not ShowChangeDiskWindow ('Please Insert Disk 2 To Continue..', ExpandConstant('{src}'),'Data5.bin') then break;
if not ISArcExtract ( 0, 20, ExpandConstant('{src}\Data5.bin'), ExpandConstant('{app}'), '', false, '', ExpandConstant('{tmp}\arc.ini'), ExpandConstant('{app}'), False) then break;