i opened folder in PgcEdit, clicked the Plugins menu, clicked Prohibited User Operations, clicked Selectively Clear VOB PUOs, everything except GoUp, and angle change were unchecked already. i went ahead and let pgcedit edit the dvd. then burned the video_ts folder and the buttons were still there. (what is the PgcEdit_backup folder, as PgcEdit gave a warning that a backup will not be made.)

i then, "load your DVD in PgcEdit, locate your movie, double click it and click on 3 dots representing PUOs on the top left. Tick angle change and save" burned the folder and viola......no more angle button.

@fengtao, thank you.