Only disc that contain subtitle on/off information. Turn the subtitle on/off. Subtitle on/off information cannot be recorded using this unit. If the subtitles overlap the closed captions recorded on discs, turn the subtitles off.
Note:
Some settings may not be changeable, based on the unit’s current activity (playing, stopped, etc.) and disc contents.
This answer is for the following models; DMR-ES30, DMR-ES35, DMR-ES40, DMR-EZ47, DMR-EZ475, DMR-EZ48, DMR-EZ485, DMR-EH75