I have a HP. brand pc and the burner is built by LITEON for HP. so, it’s a little different. most, of the time with any brand media it rejects the +r discs. if I run a drive speed test and allow it to detect, sometimes it will go ahead and burn on the +r disc after I fool with it for awhile. for a long time it burnt +rs just fine? when I look at the drive info in tools, it shows it should burn +r discs. Any help would be appreciated!
What is the model number of the drive?
Try uninstalling it from Windows, then reboot and let Windows auto-detect it.