If your using win xp movie maker, your final output quality will be subpar at best. There are some online nle programs online that are better than xp and are free. You can edit on youtube, livestream studio, video spin. I also set my fps in urt to 30 when capturing/exporting avi (unless your doing intense speed effects, every extra frame is handy), since often the final output/sequence will be 24 or 30fps.