Whether you are required to respond to a "Salaam" you hear in a digital file (like an mp4) is a common topic of debate among scholars:
In Islamic tradition, when someone greets you with "As-salamu alaykum" (Peace be upon you), it is considered to respond with at least an equal greeting. Download “Salaam” Response(720p) mp4
Many high-quality (720p/1080p) instructional videos are available on major platforms to help with pronunciation and etiquette: Whether you are required to respond to a