Princo can make DVD-R and never could manufacture DVD+R (never satisfied +R specs). I bought five pieces of that thing and all were coasters, so never bought it again...
DVD-R MCC 003RG20
DVD-R RITEK Gxx
is bulsh*t compared to:
DVD+R RITEK Rxx
DVD+R VDSPMAB001 [Interaxia AG]
Probed in my burners:
LG GSA 4040B
If you like, I can send you scans of my DVD+R and DVD-Rs recorded 2 years ago with TY and RICOHJPN00 compared ... So you can see which media is better after 2 years...
All brands of TY I probed are coasters, or my Panasonic SC-DK20, my Philips DVD-955 or my Pioneer Car DVD-7300 can't read it. So I discarded TY long time ago, and I don't see why TY is soo good for you... And TY is not recognized as good media in my country and is hard to find it.
And remember that Panasonic SC-DK20 is not compatible with +R media, but with ROM booktype settings read it better than DVD-R and faster in media recognizing times... (Of course DVD-ROM bitset)