Debian blu-ray and dvd both have 3 disks, what is the purpose of the blu-ray discs

blu-raydebiandebian-installerdvdsystem-installation

I tried to download the Debian "testing" (aka "stretch) install media that is blu-ray because I wanted a one disk solution. When I went to the Debian site to download the blu-ray disk… there was 3 disks… arg.

The regular Debian dvd install media also has 3 disks. Given that the dvd and blu-ray install media both have 3 disks… what is the purpose of the blu-ray version?

Best Answer

From #debian-boot on OFTC:

06:47 <musca> faheem: yes, the dvd series is much bigger, but only the first three images are available as http downloads. 
06:50 <musca> for stretch the number of DVD images is 15  http://cdimage.debian.org/cdimage/weekly-builds/amd64/jigdo-dvd/
06:55 <musca> faheem: let me point out: you really don't need those additional images.
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