This one goes especially for username:amethyst13, I read you said u'd like to get the movies one day. So anyway, i took the liberty of finding out some info on the movies. I got addicted to the show after seeing the first episode and it has now become my favourite, i even go out of my way to make sure all episodes have working links. Here the info on the DVD's.
* H2O: Just Add Water: Volume 1 was released on 12 September 2007. Included are the episodes "Metamorphosis", "Pool Party", "Catch of the Day" and "Party Girls", as well as the series trailer and profiles of the main characters.
* H2O: Just Add Water: Volume 2 was released the same day and includes "Something Fishy", "Young Love", "Moon Spell" and "The Denman Affair". This set features a photo gallery of series one.
* H2O: Just Add Water: Volume 3 was released on 5 March 2008 and includes "Dangerous Waters", "The Camera Never Lies", "Sink or Swim" and "The Siren Effect". This set also contains character profiles of Zane and Lewis.
* H2O: Just Add Water: Volume 4 was released on 7 May 2008 and includes "Shipwrecked", "Surprise!", "The Big Chill" and "Lovesick", and features an H2O quiz game.
* H2O: Just Add Water: Volume 5 will be released on 9 July 2008 and will include "Under the Weather", "Bad Moon Rising", "Hurricane Angela", "Hook, Line and Sinker" and "Red Herring".