(In reply to comment #0)
> Please, can you describe for translators, what exactly represents this
> variables - %s?
 > #: ../src/libvirt-machine-properties.vala:257
> msgid "Insertion of '%s' as a CD/DVD into '%s' failed"

Sure, I'll add a translator comment soon.

Created attachment 238697 [details] [review]
libvirt-machine-props: More translator comments

Explain '%s' in CDROM related error messages.

(In reply to comment #2)
> Created an attachment (id=238697) [details] [review]
> libvirt-machine-props: More translator comments
> 
> Explain '%s' in CDROM related error messages.

In anticipation of my patches in bug#690779 going in, I have based this patch on top of those. I'll rebase if needed..

Review of attachment 238697 [details] [review]:

::: src/libvirt-machine-properties.vala
@@ +328,3 @@
                         } catch (GLib.Error e) {
                             var path_basename = get_utf8_basename (path);
+                            // Translators: First '%s' is path of ISO file or CD/DVD device that user selected and

s/path/filename

@@ +329,3 @@
                             var path_basename = get_utf8_basename (path);
+                            // Translators: First '%s' is path of ISO file or CD/DVD device that user selected and
+                            //              Seconds '%s' is name of the box.

s/Seconds/second

Attachment 238697 [details] pushed as 4d0b650 - libvirt-machine-props: More translator comments