Over the years, Apple has produced a few applications designed for both Windows PCs and Macintoshes. Thank goodness for Windows users that iTunes is also in this group. (None of the others are worthy of much mention, but iTunes is definitely a crossover hit!)
In order to use iTunes on a Windows computer, you must be running Windows Vista or Windows XP. If you are running Windows 98, Me, or 95, you are out of the iTunes game. (Of course, those older versions of Windows are really old and you should be using a newer version for more reasons than just the ability to run iTunes!)
You have two primary ways to get a copy of iTunes and install it on your computer. (The good news is that neither way will cost you any more money than you have already spent.) First, if you have purchased an iPod, which is a likely case given that you are reading a blog about iPods, a copy of iTunes is provided on the CD included with every iPod. Second, if you don’t have an iPod or if you don’t have the CD that came with it for some reason, you can download iTunes from the Internet.
The Audio Interchange File Format (AIFF) provides relatively high-quality sound, but its file sizes are larger than MP3 or AAC. As you can probably guess from its name, this format was originally used to exchange audio among various platforms. As with the WAV format, because the MP3 and AAC formats provide better sound quality in smaller file sizes, you aren’t likely to use the AIFF format very often. The most likely situation in which you might want to use it is when you want to move some music or sound from your iTunes collection into a different application that does not support the MP3 or AAC format.