I'll let you know in a few days!
I just ordered on a few days ago. I have a Denon DVD-2200, which I love, but DVD-R's aren't 100% reliable in it. However, the Pioneer DV-260S I have in my bedroom system is rock solid with every type of recordable DVD I've ever tested with it. So I bought the 563a to add to my rig for DVD-R use only.
Only downside is that in the meantime I found out that a regular at AudioCircle had a Pioneer 656a with Modwright Level I transport mods & a Bybee on the digital out. D'oh!
So I did what any reasonable (er, okay, reasonable by audiophool standards) guy would do: I bought em both!
If the 656a is solid with DVD-R's, too, I'll probably turn around & resell the 563a (unless it's actually better). After all, I've already got three other DVD players.