Unable to rip.

I am using dvdrip 0.98.9, and when select the rip title(s)/chapter(s) 
button from the rip title menu, I get the following error in the console:
Catched Callbacks Exception: Error executing command execflow tcprobe  
-i 
/home/garnpipebear/media/rips/dvdrip-data/GraveOfThefireflies/vob/003/ 
&& echo EXECFLOW_OK:
EXEC_FLOW_JOB_PID=16843
[fileinfo.c] warning: [fileinfo.c:125] file read error: No such file or 
directory
[probe_ffmpeg.c] critical: unable to open 
'/home/garnpipebear/media/rips/dvdrip-data/GraveOfThefireflies/vob/003/' 
(libavformat failure)
[tcprobe] critical: failed to probe source
 at /usr/lib/perl5/site_perl/5.8.8/Video/DVDRip/JobPlanner.pm line 378

Anyone know what's going on? Thanks for the help!

David
[email protected]