Trying to understand input/output error seen while reading newly burned dvd+r

[D Wyatt]

Well, I'm no less confused, but ...

Despite the fact that the first iso compared w/o error to the
originating directory after being mounted, i went ahead and
recreated the iso and burned another dvd+r from that.

The new dvd now compares w/ no errors to the original directory.

I hate apparent nondeterministic events!

D Wyatt