[NCLUG] Copying a personal DVD

[bsimpson at att.net]

I recorded some stuff onto a DVD+R (using a standard DVD
recorder) and now I would like to make a copy of it, and
so I'm looking for recommendations on a program to do this,
particularly one that runs on Linux.  Also I would like to
copy to an archival quality DVD (100+ years longevity)
but all of the archival quality DVDs I've seen are DVD-R.
Is it straight forward to copy video (originating from
a VHS tape) from a DVD+R to a DVD-R?  (The DVD doesn't
just have video, there is also a simple menu with title
selection, and I don't know if the formats are compatible.)

Brian S