AFAIK, M Disc really only matters for DVDs due to their organic materials. (Non-LTH) BDs on the other hand have inorganic materials and last pretty well.
I think there was a French study that compared DVDs, M Discs and BDs and the HTL BDs fared very well. Can't find the document though.
I think there was a French study that compared DVDs, M Discs and BDs and the HTL BDs fared very well. Can't find the document though.