Hello,
Windows is not the best option to do this with. Are you trying to do it thru Windows Media Player? That might be the only way you can get it done with Windows.
Sadly ID3Tag software is much better of a choice. Windows is very picky when it comes to this. Most of the time it does not work even with Windows Media Player and you have to resort to iTunes or WinAmp to do it cause Windows can not.
Cheers,
Mak