It's hard to say, but I've noticed RitekF16 mentioned not only in the forum, but actual examples have appeared at www.videohelp.com under various manufacturers as +R media. How it burns--- I have no idea.

I can't imagine P16 being professional line, because even retailers (such as Office Depot) have opted to use RitekP16 as their own brand, which is typically reserved for the cheapest media.

Even R05 has surfaced... With three recent introductions of +R media by Ritek, i'm curious to see what gives. I may have to do some research of my own.