[DVDnav-discuss] Trying to get volume id of dvd. But not sure how?

[Steve Dibb]

> There's a couple of ways to get unique identifiers from a DVD, but I'm 
going 
> to assume you mean the title, which is a 32-character string.

Derp, actually it's 16 characters.  I was thinking of provider ID.

Here's another old C program that used to ship with libdvdread that does the 
same thing:  
https://github.com/hilbix/libdvdread-samples/blob/master/disc_id.c

Steve