How can I have two different itunes libraries on one computer?

I share a library with my sister on an old computer for our 2 ipods. My parents share a library on a new laptop for their 2 ipods. My sister and I would like to put or library onto the laptop without putting our songs with our parents’ songs. So, in other words, two separate itunes libraries for 4 ipods. How do I do that? Thank you.

hold down shift (option) when you open itunes. From here you can create a new library or use a different one.

You can copy the entire itunes folder to the laptop, then select the itunes library file from wherever you save the folder to.

windows:

http://docs.info.apple.com/article.html?path=iTunesWin/8.0/en/15502.html

OSX:

http://docs.info.apple.com/article.html?path=iTunesMac/8.0/en/15499.html