User blog:Edunk5/Name of audio format?

Users from Australia such as Stryzzar, what do you call this audio format? The one used in Total Drama: Revenge of the Island, Total Drama All-Stars (except for Evil Dread and Saving Private Leechball), Total Drama: Pahkitew Island and possibly in The Ridocnulous Race when aired in Australia on ABC3. It's the sound used in most home media releases and shows from America and Canada that aired in Australia. Why do they use this format here because I hate it? I much prefer hearing the original audio. Is it because it's more cheap there?