Ok, I was messing around with Line Rider and I decided to make a video.  I had the music and stuff all planned out, but when I recorded it, my fps went from 25 to 15, which screwed up everything.  Is there any way that I can increase the rate at which the video plays to make it seem as if it were 25 fps?  I'm thinking there must be some program that will take a video (its about 4 minutes) and be able to shrink it to about 3 minutes and 30 seconds by increasing the frame rate.

Any help would be appreciated.  It's 2 A.M. EST and I'm tired, so I'll check back here in the morning.  Thanks in advance.