[quote=manuel74;2140256]CDRinfo has tested AD-7200S, you have the AD-7203S, could it make some difference ?[/quote] I have the AD-7203A (not S) which is the PATA version.
The AD-5200A/S is the basic drive.
The AD-7200A/S is identical but has DVD-RAM writing enabled in firmware.
The AD-7203A/S also has Labelflash/DiscT@2 enabled in firmware.
There should be no other differences between these drives, so none of these drives will support overburning to DVD+R media as shown by my test.
Simulated overburns cannot be trusted as a prediction for actual overburning, unless the simulation fails.