I haven't used EAC in a while, but dbPoweramp tests the drive more thoroughly than EAC did a couple of years ago. EAC asks the drive whether it has a read cache. dbPoweramp tries to test its size, which is where most modern disc drives fail. It doesn't do any good to have a read cache if you don't support the instructions to access it.
dbPoweramp also supports FUA, which is not supported strictly by Plextor, despite what dbPoweramp help says.
dbPoweramp also supports FUA, which is not supported strictly by Plextor, despite what dbPoweramp help says.