Bandicut (shareware $29) http://lib.giveawayoftheday.com/Bandicut_3091593/ is a video editor that can cut a certain part of the video. Because it cuts videos without encoding, you can clip a part of video quickly while keeping the original video quality. The program can also encode/convert the video into AVI and MP4 formats.
Free MP3 Cutter http://download.cnet.com/Free-MP3-Cutter/3000-2170_4-75182284.html
Free MP3 Cutter Joiner http://download.cnet.com/Free-MP3-Cutter-Joiner/3000-18505_4-75547989.html
AIV MP3 Cutter http://download.cnet.com/AIV-MP3-Cutter/3000-2170_4-10724232.html