DVD-R and DVD+R, compatible with UHD video?

[NVR8580]

Generally, and to keep this post short, --are DVD-r and DVD+R, compatible with UHD video?

[LIGHTNING UK!]

As UHD is just data, yes, they're compatible in the sense you can store that data on anything it'll fit onto.

The problem would come when you attempt to playback that content from a DVD. If a player detects a DVD, it may only attempt to look for a DVD Video folder (VIDEO_TS). If it goes beyond that and looks for BD Video (HD and UHD) structure too, you should be fine.

The best thing to do would be burn one and try it in the player you intend on using to see how it behaves.

[dbminter]

The problem you're most likely going to run into is how Sony defined the Blu-Ray player standard.  For instance, you can put BD video on a DVD if it's small enough and a BD player will play it, but you cannot put DVD Video on a BD and get it to play.  The way it's defined is the player generally (Not always.) checks what kind of media is inserted.  If it's a CD, it will attempt to play music.  If it's a DVD, it will attempt to play a DVD Video.  If it's a BD, it will attempt to play a BD movie.  Since UHD is so large it general precludes anything but BD media, UHD probably checks for a BD before attempting to play it.