What to do with all them old CDs

A thought occured to me a couple of days ago. Simply put, it is this:

Would it be possible to build a solar power plant using old CDs?

Would it be feasible to have racks to hold groups of CDs together connected to heliostats to reflect the sunlight over a large area into a black receptacle where water is heated into steam to power a turbine?

It seems to me the limiting factor here is the reflectivity of the CDs. I mean, it's not like there's a terrible shortage of discarded CDs, is there?

*Posted this on the RDF forums. Will be waiting most eagerly for the response, even if this idea is shot down in flames, coz science is just like that...