The cost to commercialize a new technology often decides over success or failure of a new product. The Blu-ray Disc Association appears to have made a significant step into a direction that will offer more than five times the storage space of today's DL DVD media on and keep manufacturing cost at about the same level. The organization today said that multiple companies involved with each step have contributed to process improvements and cost efficiencies.
Blu-ray discs to have same price as current DVD discs

Tom's Hardware reports Blu-ray discs will have nearly the same price as current DVD discs, while offering a capacity of 25 and 50GB. BD-ROM discs with a capacity of 200GB are currently completing lab testing.