@ alberonn
3.1 Softroms for the A3000 legally should not exist in the general Amiga community. I've been searching for some too, when I came across this, from MakeSuperDisk.readme on Aminet:
Commodore declared that in order to upgrade an A3000 with boot ROMs you had to buy the A3000 2.04 ROM upgrade kit. This made upgrading the machines in software illegal. Only registered developers were allowed to use the Kickstart files they received from BIX and the ADSP network.
:-(. Got any friends who were registered developers?
I legally own a spare set of A3000 3.1 ROMs, but I'd much rather use them in software than hardware.