In the Benelux, the DVD is being distributed by Art-S Home Entertainment . It can be purchased from the Windmill Film webshop for 14,95 Euros (excl. shipping costs).
[Webshop Windmill Film]

For the rest of the world, the DVD can be purchased on Amazon for 26.99 USD (click here to go to the Amazon page).

The main film is 45 minutes long (see [Spiral Galaxy album on Vimeo] for a preview). On the DVD there are six extra's, with a total length of 30 minutes:

- Trailer.

- Prof. Blaauw's memories from his time and work with the Photographic Telescope at the Old Leiden Observatory.

- Prof. van Woerden's memories of his time at the Leiden Observatory and further details about his part in the unravelling of the Milky Way (1944 - 1956).

- Additional explanation about the Star Streams that Jacobus Kapteyn discovered in 1904.

- A more detailed explanation about how the positions of the hydrogen gas clouds in the Galaxy are determined from radio astronomical observations (watch this extra feature on Vimeo [Spiral Galaxy album on Vimeo]).

- A summary of the impact the first maps of the Galaxy had on the astronomical community and beyond.

The DVD has the option of menus and subtitles in English, Dutch and German. The main film also has the option for Stereo or Dolby Digital Surround 5.1 sound.