Most places will list brand, model, platter size, and storage space. Some will list a model number, height (for 2.5" drives), and rotation speed. But almost none will list the number of platters and platter density or power consumption. Is there any resource that lists those? I'm asking about power consumption mainly for laptops and would definitely like to know about the platters in general (though 5mm and 7mm drives are always and usually single platter, respectively, and I think you can cram three in a 9.5mm drive). So, any database at all? If not, would anybody want to make one?