To get a Linux CD. go to Google then enter this in the search "Kubuntu" Kubuntu is Very Simple Linux with a KDE desktop .It is also very easy to use.

When you get to the Kubuntu website click the download section and Download a ISO image that you will need to burn to a 700mb CD. You will need a Program such as PowerISO to Burn the ISO image to the CD.. do not burn the ISO as Data File it doesnt work like that.

If you need anymore help contact me i'll try to reply.