We built an ENCORE file from a QT MASTER (895 gigs) which was originally exported from a FCP MASTER.
In the ENCORE "BUILD" there are white specks and black specks/artifacts, particularly where there is a higher level of bright light. i.e. when a headlight shines on someone's face.
These issues appear in the exact same spots every time. We burned a Blu-ray disc and they appear in the exact same spots as well. So I don;t think the issue is related to the cables or TV (because it is in the ENCORE BUILD as well)
NOTE: 4 weeks ago, we had previously performed the exact same process, using ENCORE, with the same Blu-Ray burner and there were NO issues whatsoever. Since then we have added about 2 minutes of footage (including a 10 second green screened sequence) to the master FCP MASTER, which looks great (no artifacts) then exported to a QT Master, which also looks great (no artifacts), then built it on ENCORE. Now we have this issue with the specks/artifacts.