GNOME Bugzilla – Bug 344689
Two second pause pref does not affect the disc size
Last modified: 2007-08-03 11:59:44 UTC
And it should.
https://launchpad.net/ubuntu/+source/serpentine/+bug/84824
This problem has been fixed in the development version. The fix will be available in the next major software release. Thank you for your bug report.