i spent ages making a video and putting together clips and audio on microsoft expression encoder 4, and now that i'm finished i get an error when trying to encode that says:

Video stream will be re-encoded.

File has trim points.

Full encode of file needed because file has B-frames with open Gops.

Audio stream will be re-encoded.

File has trim points.

File has an audio overlay applied.

What do i do? i really need answers ASAP, thank you for your time.