Assemblies in accordance with the present invention can access a data storage medium having one or more disks. Ethylene is polymerized in two reaction zones with a C6-C10 \u03b1-olefin in the presence of a catalyst system comprising an activator, a supported bridged zirconium complex, and a supported non-bridged zirconium complex. Thereafter, information is obtained across the network connection based on the speed of the network connection.