k9copy generates a error on DVD backup to ISO using stock Kubuntu 11.04

Backing up DVD to ISO, error box labeled: "An error occured while Burning DVD Insert an other DVD" pops up with the following error message:
"I: -input-charset not specified, using uft-8 (detected in local settings)
genisoimage 1.1.11 (Linux)
Scanning /tmp/kde-XXX/k9copy/XXXXXXXXXXXXXX
Scanning /tmp/kde-XXX/k9copy/XXXXXXXXXXXXXX/AUDIO_TS
Scanning /tmp/kde-XXX/k9copy/XXXXXXXXXXXXXX/VIDEO_TS
/usr/bin/genisoimage: No such file or directory. Failed to open VIDEO_TX.IFO
/usr/bin/genisoimage: Can't open VMG info for 'tmp/kde-XXX/k9copy/XXXXXXXXXXXXXXXXX/
/usr/bin/genisoimage: Unable to parse DVD-Video structures.
/usr/bin/genisoimage: Could not find correct 'VIDEO_TX' directory.
/usr/bin/genisoimage: Unable to make a DVD-Video image.
Possible reasons:
-VIDEO_TS subdirecotry was not found on specified location
-VIDEO_TS has invalid contents"

Hitting the continue box generates multiple similar warnings.

This error occurs on several different computers using Kubuntu 11.04, as well as Debian Testing and Sid using the same computer. It does NOT occur with Debian Stable (as of 7/29/2011).

Sorry for any typos in the error message, as I wasn't able to copy and paste out of the k9copy error box.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: k9copy 2.3.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Fri Jul 29 14:20:20 2011
InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Release i386 (20110427)
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: k9copy
UpgradeStatus: No upgrade log present (probably fresh install)