Winamp defaults to "Album Name.ext" and keeps it in the folder containing the tracks. If a track is playing and you right-click the blank album art panel, it will do a search and you pick the cover you want - Winamp stores it in the correct folder with the correct name. The other option is to grab the art manually from your web site, save it as "Album Name.ext" and move it manually to the correct folder, rather than making Winamp do it.If you want your art from a specific site, just change the name when you save it, then use Explorer to move it to the right folder. No conversions, no loss, no name changing.
You have more choices in current Foobar.Default install of Foobar will recognize art as you described.terry