Every new stable release of Debian GNU/Linux breaks a few records and "Lenny" will be no exception. With over 25,000 packages for 13 supported architectures, the upcoming release of the world's largest Linux distribution will come on 414 CDs or 64 DVDs. But now, for the first time ever, Lenny will also be released as a set of 25 GB Blu-ray discs: "We are now producing some Blu-ray images alongside the existing CD and DVD images with each weekly 'Lenny' build. As a standard Blu-ray disc will hold up to 25 GB of data, that means that, for the first time in several years, users should be able to fit all of the packages for one architecture on a single disc. The downside of adding yet another image type is that potentially we could use up huge amounts of disk space and bandwidth on our central servers and mirrors to accommodate them."
Although I'm not sure why they didn't mention BitTorrent as a solution to the last sentence there?