Okay I used to own the Sony DRU-720A. I recently replaced it with the Sony VRD-VC20. I was looking on the Sony Downloads Website, and by accident navigating to the DRU-720A downloads, downloaded the firmware and installed it. Later to see that the drive no longer was recognized as a DVD burner. Only then I saw...crap I flashed the drive with the wrong firmware.
Now it works as burning as both were DVD burners. But I just feel the need to have the correct model firmware on it. It's JYC4, I believe but I may be wrong. I can't find JYC4, but I have a firmware update, if that's worth anything. Either way, are there any suggestions? Thanks.