Ö3 Austria Top 40 is the official Austrian singles chart, as well as the radio show which presents it, aired Fridays on Hitradio Ö3. The show presents the Austrian singles, ringtones and downloads chart. It premiered on 26 November 1968 as Disc Parade and was presented by Ernst Grissemann. The show has had other names and other presenters, as detailed below.
Ö3 Austria Top 40 Longplay (Albums) - Actually a Top 75
Ö3 Austria Top 20 Compilation - including releases as Diverse Interpreten (Various artists)
Ö3 Austria Top 10 DVD
Note that online versions of the chart at charts.orf.at and austriancharts.at still list 75 top positions and are known by various outlets and presentations as Ö3 Austria Top 75, but charts.orf.at still labels itself as "Ö3 Austria Top 40" and broadcast versions only quote the top 40 with the rest of the positions 41 to 75 considered as "bubbling under".