Is there any concern with listening to audio/video recordings of Tefilloth (prayers)? If someone hears a recording of a Berachah (blessing), does he have to say 'Amen'? Is he prohibited from saying ...
Many times I listen to recorded Shiurim (lectures) where the speaker says a Brocho (usually Shehakol on a drink). Should one answer Amen to such Brochos?