Biblioteca de Ajedrez
appears to be a service. To download a complete feature you must be
a premium member.
The cost of various types of memberships is in EUROs.
What is not clear is who the service is for.
It appears to be for libraries and institutions but I am not sure.
With the download I am not exactly certain what you get.
It appears that Chess CDs are offered for downloads with limitations for free use.
Library Chess
Linear Mode
