for dvd-video disks that have the best compatibility with standalone players, its best to go with dvd-r disks, though dvd+r isnt too far behind now.
if u can afford them, then go for Taiyo Yuden dvd-r disks.
verbatim dvd-r disks are also top notch as are maxel.
everything else falls below these 2 brands.
ritek G04 disks seem to be a bit hit and miss these days. some people report problems with them, others have no problems, so the choice is yours if u want to experiment with them.
if u want dirt cheap media then you could try princo yellow tops or datawrite redtop v2 disks. these are both very cheap and get the job done.