I am making a PowerPoint presentation (to run off a PC). I need to embed some video and I'd like to use my iPhone 4 to record the video. PowerPoint on PCs are finicky about what video files they will play- wmv and avi i think are best. So is there a fast, easy, cheap (ie free) way to get these 30sec to 1min video clips from my iPhone 4 into formats recognized by PowerPoint on a PC? Or is it not worth it and should I just use another videocamera to record in .avi mode? Now before anyone shouts out to use Keynote or Mac Powerpoint- I can't. I have to bring my presentation on a USB stick and it will be running off of someone else's PC laptop. Thanks!