Where can I get silver-backed DVDs?

[c073186]

All commercial DVDs have a back (the data side) that is silver in color. All the DVDs I find in stores are colored: purple, blue, green, etc. Where can I get ones that do not have these colored backs?

 

[treehorn]

You can't. Those are silver because they are replicated via a glass master and pressed. Recordable DVDs have a layer of dye that gets burned away by the laser during recording (Hence the color)