Hmmm… I’m not sure what you’re asking here.
Your Piodata DVR-108DX supports burning DVD+R DL media at up to 4x as far as I can tell by looking at the drive specifications.
The Pioneer DVR-108D also supports burning DVD+R DL media at up to 4x.
I think it may be possible to cross-flash from one firmware to the other, but what exactly is it you want to accomplish?
If what you want is support for some of the newer DVD+R DL media, you should in my opinion instead buy a newer drive.