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[sosotiit]

Not sure I am following you totally here,
You have an sh-D162C with firmware 0.81.
The file size is ok so the compatibility patch for NME is there.
bitset is dvd-rom
so Your backup seems OK

1) are you sure the chip is active? does it auto-detect the backup vs original? is there a way to force it active(like holding a key on the controller while the console starts)? I believe the power led is suppose to turn off when it is a backup to tell you the chip saw it, is that the case?
or
2) try to burn at 2.4x on verbatim media

hope it helps, rgds,soso