This report concerns recordMyDesktop and gtk-recordMydesktop in Ubuntu 8.10 and 9.04 (alpha), both 32 and 64 bits version.
I tried to record a movie of my Gscreendump to demonstrate drag & drop capabilities.
But it seems that gtk-recordMyDesktop does not allow drag & drop during recording session.
A video: http://www.edbl.no/tmp/drag_drop_error.ogv
ps. More about Gscreendump here: http://ubuntuforums.org/showthread.php?t=1096860
See also bug-report on Launchpad.net: