usb-creator-gtk does not make non-ubuntu boot disks

[Susan Cragin]

I wish to create a usb key for another distro (LinuxMint Debian version) and usb-creator does not recognize the iso as a valid image.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: usb-creator-gtk 0.2.35.2ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
Uname: Linux 3.2.0-18-generic-pae i686
ApportVersion: 1.94.1-0ubuntu1
Architecture: i386
Date: Fri Mar 9 08:47:38 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: usb-creator
UpgradeStatus: Upgraded to precise on 2012-03-03 (5 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Pierre Rudloff (rudloff)]

I have the same problem with DSL (http://distro.ibiblio.org/pub/linux/distributions/damnsmall/current/dsl-4.4.10.iso).