Experiences with lite-ons and ritek r03 media

I just recieved a 100 pk of ridata dvd+r media. I was hoping they would be ricohjpn but they are ritek r03 instead. Will these still burn ok at 8x like the ricohjpn r01 or should I slow the burn speed to 4x? I have to burn ritek g04’s at 2x to get good results. Thanks for any replies.