If you are developing media-centered software application (Windows, Mac OS, Linux), mobile application or website, and you would like it to have modern Vista (Aero) style - then get these icons. This Multimedia Icon Set includes 58 unique icons (502 variations) of seven sizes: 16x16, 24x24, 32x32, 48x48, 64x64, 128x128, 256x256. Default format is .PNG, though other formats (.ICO, .ICNS) are available on request. Among these icons are Remote Control Icons (Play, Stop, etc) and Multimedia Devices icons (Camera, Scanner, etc), and other icons like Zoom, Movie File, Sound Spectrum.
So, if your software or website deal with Video, Sound or Image, get these icons and be ready for Vista.