Greetings,
On the DVDs I have used, Windows 2008 R2 Enterprise, Standard, Data Center, and Web Core are all present.
When you are doing a manual install you tell the installer what version you want to install, and then it is done.
We use a scripted install so you are not given a choice. You simply insert the DVD and our installer uses the files required to install the Web Core version.
Remember that you need a non SP1 version, as the installer does not support the SP1 version of Windows 2008 R2.
You are ususally given two keys if you have Volume/Enterprise licensing. One key activates the Data Center software, and the other activates Enterprise, Standard and the Web Core installation.
Let us know if you have any other questions.
Note: If you obtained your SPC 2 ISO previous to the 2.1 release you may want to download the 2.1 ISO from file connect rather than use the old SPC 2 installer.
Best Regards.