Taiyo Yuden DVD-R is the best and most compatible in set-top players. You can tell it's better quality than everything else just by looking at the disc (and they're more rigid than other brands).
As a side note, you specifically said -R, so the answer is definitely Taiyo Yuden. They are the most compatible and almost always the best burn quality If you asked about DVD+R, it's usually Taiyo Yuden, but some players get better burn quality with Verbatim. Still, burn quality in itself is not the same as compatability (as some people like RobCur would have you believe -- although it looks like you've been around here enough to know what every post of his is 100% retarted). Taiyo Yuden seems to be more compatible than Verbatim regardless of slight differences in burn quality, but Verbaim is also very good media.
And don't listen to the people who use generic media. The people who have burned hundreds of DVD-Rs over the past few years generally know that generic media is a terrible idea. Even Ritek, which is supposed to be the best of the cheap media, can have problems. Back when buying generic media could actually make a significant price difference, I got hundreds of Riteks. Within about 6 months most of them had read errors. I have 50+ movies on Ritek DVDs which are now useless and can't be recovered.
I used to buy from SuperMediaStore, but they're a pretty questionable retailer. Look them up on ResellerRatings. At best, they screw up a lot of orders. At worst, they intentionally short orders and substitute worse media sometimes.
Rima.com is a reliable place with quality media. They have Taiyo Yuden media for under $0.50 a piece. There's no excuse for getting generic.
DVD-R media is so cheap now. The very best is $0.50 and the very worst is $0.25. I certainly can't see why you'd get trash to save a quarter.