WinRAR Diagnostic messages: Checksum error in iso. The file is corrupt

hamed
When i try to extract a disc image file from the rar file. Next volume is required to continue the extraction. So, i browse the ...
When i try to extract a disc image file from the rar file. Next volume is required to continue the extraction. So, i browse the volume, and click ok. This time i am getting the WinRAR Diagnostic messages: Checksum error in iso. The file is corrupt. Reason: Instead of choosing the required volume to continue the extraction, i have choosen the wrong volume.

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