Mp4 files open in Sound Studio instead of Quicktime

When clicking on an mp4 file, they are opening in Sound Studio instead of Quicktime. However, when I open Quicktime and THEN open the mp4 file, it opens normally.
I went to disk utilities and verified permissions thinking that might fix the problem. Nope.
Anyone had this issue before?

Select a .mp4 file, choose File -> Get Info and change the Open With popup to Quicktime. Then click Change All.

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