GSA H54L dual layer burning problem

Hi guys, i’ve got a h54/l and i’ve crossed patched it with the latest h55 firmware and it has still not resolved the issue i am experiencing so i thought i would consult this wealth of knowledge.
MY problem is that all my dual layer discs are burning at 4x even when i select a different burning speed. I’ve check the media codes for the firmware and for the discs in questions (mkm-001 or something like that Verbs 2.4) and it has the 2.4, and 4 burning speed. However i have noticed in dvd identifier it says that my drive only supports burning at 4x, with all my dl discs.

What speed are you trying to burn at?

2.4 but it only allows 4 x