How can I synchronize my Flash movie with imported video clips?

Hi there:

I’m working on my first Flash project, and have come across a problem. I created a Flash movie with one scene and a couple of movie clips. I imported a one minute musical bed that is 1,800 frames (I set the movie to 30 frames/sec).

I created some animation and it tested perfectly. I then created a movie clip and imported a short video piece into it (processed at 30 frames/sec).

Now all of a sudden my timing is off. The music ends well before it is suppose to. And, the video clip that I imported seems to be running in slow motion!

The scene still has 1,800 frames; but it seems as if the addition of the video clips has stretched the work somehow.

I assumed that if all the elements were set to 30 frames/sec everything would fit seemlessly.

Any suggestions as to how I can get the imported video clip to run in time with the music???

Thanks in advance.

John