This month, on our double-sided disk, we have the newest version of Ubuntu, 14.10 – Utopic Unicorn. Utopic is the most mature and stable version of Ubuntu to date and comes with the latest and greatest Free Software.

Side A comes with the 32-bit version of Utopic, ideal for older machines or if you have compatibility problems with libraries or apps.

On side B, you'll find the 64-bit version of Ubuntu. This will work better on more modern machines and will deliver a faster and more optimized experience. If in doubt, try this version first.

[...]