It should work with MAM media. However Mam-e DVD-R 4x Media incombination with Sony dvd-burners have still some compatibility problems. On ver old dvd players there are some replay problems.
MAM-E and Sony are trying to fix it with a firmware infact the newest firmware could allready fixed it since I don't know when Sony released a new firmware and this news is some months old.
There are only this compatibility problems with the 4x media. The 2x media works fine.