Proposed Blu-ray capacity increase
A new method for evaluating Blu-ray Disc media has been announced by Sony and Panasonic that can allow for a capacity increase on each layer from the current 25 GB to 33.4 GB.
Nothing is set in stone yet, but the method, called i-MLSE (Maximum Likelihood Sequence Estimation), will be proposed to the full Blu-ray Disc Association later this year. If approved, each layer can be used to store about a 33% more data.
There still isn’t a lot of information, so its not clear if existing players will be able to read the additional data.