Here's the problem, the script used to make the myspleen reencodes.
a=ffvideoSource("G:\TEMP\THX1138_16mm\THX1138r1a.mov")
b=FFVideoSource("G:\TEMP\THX1138_16mm\THX1138r1b.mov")
c=ffvideoSource("G:\TEMP\THX1138_16mm\THX1138r1c.mov")
d=ffvideoSource("G:\TEMP\THX1138_16mm\THX1138r2a.mov")
e=ffvideoSource("G:\TEMP\THX1138_16mm\THX1138r2b.mov")
trim(a, 1721, 30599) ++ trim(b, 104,19433) ++ trim(c, 418,11770) ++ trim(d, 312,50058) ++ trim(e, 62,13728)
Crop(0, 180, -0, -180)
Spline36Resize(1280, 720)
The first trim takes out everything before the WB logo