Despite EZYDVD's description, six episodes are instead on the release with Ol' Wheezy Wobbles being removed and replaced with two other stories from a previous series.
I noticed that there are two Season Fifteen episodes. They're, Kevin The Steamie and Wonky Whistle. They've replaced Ol' Wheezy Wobbles though.
Race to the Rescue, Express Coming Through, Flash Bang Wallop! and Welcome Stafford precede the new additions.
Go Go Thomas! from ABC for Kids is available to buy on Australian DVD.