These discs are region 4 for Australia. Outside these countries a multi region dvd player will be requird. The item "Air Crash Investigations Investigation Season 1-18 DVD Box Set Region 4 R4" is in sale since Tuesday, October 22, 2019. This item is in the category "Movies\DVDs & Blu-ray Discs".The seller is "getemnow18" and is located in Perth. This item can be shipped worldwide.