Please avoid duplicating bug reports in this section. (search in the previous posts first, if you find any related post, just reply the post to confirm the bug) https://www.dvbdream.org/howtoreportbug.php
Works fine on my tests. Maybe some other app causes problem.
Maybe a clean install of Windows XP will help. then install other apps one by one until you find the culprit.
DVB Dream - because I have to dream about having time to code it