How can find out that selected installation media are for edition Enterprise or Standard?

I have installation media copied in some folder on local disc.

For example in D:\Install\Microsoft\SQL\v2008-R2 .

How can I identify which Edition (of Microsoft SQL Server) I can install from this media/folder?

__________________________________________________________ If isn't above described anything, the following applies: Technical details: * OS: Windows Server v2008-R2, English, Enterprise Edition, x64, SP1 ** My User-Account is member of 'Administrators' local security group. * MS-SQL-Server: v2008-R2, English, Enterprise Edition, x64, SP1 ** My User-Account is member of 'SysAdmin' db-role.