DVR: Difference between VR and Video format?

[qanda]This thread is about the LG RC-668223 DVD Recorder/ VCR Combi. Click here to see full specs[/qanda](Actually I own the LG XBR616 but it wasn’t in the dropdown list.)
It’s a combo of a VCR and a DVD recorder.

Here’s the question:
When it initializes a DVD disk it give you a choice of VR format or Video format.

The only difference I can tell is that one format takes a bit longer to initialize than the other does.

I can’t for the life of me figure out the theoretical difference between the two formats let alone (more important) the practical consequences of chosing one over the other.

Any education would be welcomed.

Alex

The VR format allows you to edit the disk and can only be used with RW or RAM disks.