Microsoft SQL Server 2008 R2 Setup Error

SQL 2008 R2 iso file extraction Error
I download this software from the Internet. Its extension is .ISO. I extracted this software with Magic ISO and now I am trying to install this software but I am receiving the below error.
According to my point of view this file is not properly extracted. Tell me the correct reason and solution.

Microsoft SQL Server 2008 R2 Setup
The following error has occurred:
The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2337.
