[dvd::rip] PSU core message

[Bob Stia <rnr@xxxxxxxxxxx>]

Hello everybody,

Please excuse the "newbiness" of this question.  I've been ripping dvd's for 
awhile using transcode on the command line with vobcopy.  Kind of outdated I 
guess so I decided to try DVD::RIP.

I ripped a movie dvd using dvdrip (the gui)  The movie dvd seemed to rip fine, 
but after I set up all of the parameters and I tried to transcode it , I 
received the following message:  PSU core only available for ripped DVD's

Now, I remember seeing something about that before while I was investigating 
DVD::RIP, but darned if I can find it now or remember what it was about.  
Besides, it was a dvd that I ripped. Should work. right???  What 
stupidity/lack of knowledge/experience did I miss?

Hope someone can get me over the hump on this one.  Please be kind.

Thanks,
Bob S.