Custom ringtones from a video file

[Rlkv011]

I want to take a video file that I have and edit a certain part of the video's audio track and make it into my ringtone. To be more specific I want to take the new dark knight trailer and take a certain part of the video and have it repeat over and over for about 30 seconds. Is this possible? What programs do I need to do this? I have itunes 7.4, and audacity already.

Thanks

 

[gr8tfly]

Not sure if QT Pro is required for this, but if you bring up the Movie Properties window, you can select just the audio track and Extract it to AIFF for editing.

 

[Rlkv011]

I figured out how to extract the audio. Anyone know how to take out background music?