SAP Langauge Installtion Media

Hello ,

I am planning to install Spanish language on my system .

My SAP system details are as follows:

BBPCRM      701    0007

SAP_BASIS  702    0010

SAP_ABAP   702    0010

I am referring SAP note 330104 - Transport request used for language delivery // SRx

I found Language media reference to CRM 7.0 EHP 2 also and SAP net weaver 7.02 also.

On what basis should we select media. We are directly choosing  language installable depending on SAP_BASIS or the core component.

Please guide.

Thanks