Those Maxells work great for me.....
Ricoh, meaning Ritek G04 4x dvd-r's? Personally, I can't use them in two of my three standalone players (they're older). The Maxell's play flawlessly. Very good quality.
Media selection needs to be done on a case-by-case basis. I'm sure that even the Maxell's and Taiyo Yuden's have issues burning and/or playing in certain systems. It's finding the right media for your setup that is the trick (without breaking the bank).
That's why I'm a card-carrying, CD Freak forum member.
(and it's a place to show off my sick avatars.....)