Drag and drop from mautilus wont work if file name contains spaces. I have tested thunar and pcmanfm and it works with both of them, so I wonder if nautilus is the culprit here. $ rpm -q xfburn xfburn-0.4.1-1.fc10.i386 (I used "unspecified" because 0.4.0 and 0.4.1 are not known to bugzilla)
Thanks for the report, I'll look into it. My guess is that it is a bug in xfburn, although it must be then that nautilus uses a different encoding for filenames than thunar and pcmanfm - which is a bit odd.
Nautilus for some reasons uses a text/plain DnD type with xfburn. Not sure why, as Thunar uses uri-list. However, in nautilus encodes urls in text/plain, which are not decoded in xfburn. Not exactly sure who the culprit is. I can certainly work around it, but it might be even better to get nautilus to use the same DnD type as Thunar. Not sure how to do that though.
This has been fixed in rev. 7709; now the text/plain target is decoded using thunar-vfs if available.