Microsoft would be "welcome" to adopt Blu-ray for Xbox in future - despite its vocal refusal to accept the long-term validity of the format.
That's according to the Blu-ray Disc Association (BDA) - which comprises key execs from Sony, Samsung, Disney and Warner Bros, amongst others.
Speaking exclusively to CVG, the trade body dismissed Microsoft's claims that the de facto gaming storage format to follow DVD will be online downloads and/or streaming.
European BDA chairman Graham Heaton said: "The amount of data required for a blockbuster game is getting bigger and bigger by the day.
"Already games such as Metal Gear Solid 4 and Uncharted 2: Among Thieves are pushing the limits of the Blu-ray 50GB discs. The infrastructure for broadband throughout the world varies greatly and is a long way from being able to support the downloading and streaming of 50GB games in a consumer friendly format.
"It will be a very long time before this changes, so Blu-ray is in a ideal position to ensure that the best games are available to all gamers."
Microsoft has told CVG that it isn't interested in adopting Blu-ray for Xbox as it instead considers digital media the long-term 'future of home entertainment'.
Despite the trash talking, however, the Blu-ray Association said it would have no qualms accepting Microsoft into its ranks - in a kind of 'discreet service available' way.
"Any company willing to join [and adopt Blu-ray] would be welcome," added Heaton.
When asked if the BDA believed that Xbox would eventually have to adopt Blu-ray, he replied:
"That is up to Microsoft to decide."
Developers such as Capcom and Mercury Steam have discussed the "problem" of creating games on multiple DVD discs for Xbox 360.