Hi, probably a very simple question

My Standalone DVD player (Sony DVP-NC615) can apparently play

DVD-R and DVD-RW recorded in video mode, DVD-RW in VR mode and DVD+RW discs.

Can someone tell me what "Video mode" and "VR modes" are?

I simply want to burn some DIVX AVI's and RIP DVD's with my burner (Pioneer 104) and play them on this player.

Cheers.