Thanks for reply, czary2mary1. So, it is possible I guess.
Now, I'm a newbie to this, so I need just a bit more info. I downloaded BinFlash. Where do I get this PLSCSI.EXE application and the other files you showed on a picture? Is NecDriveConverter from Liggy and Dee doing the same BootCode change (5240S to 5243S) but in a simpler procedure, so then I only need to apply standard 5243S firmware? What more can I get from 5240S besides LabelFlash - faster reading/writing, LightScribe too, something else? I don't have any DVD-RAM discs, so don't need to change to 7240S just for that reason. And thanks again.