File size
Option A
MP3 is lighter
Option B
Video is heavier
FAQ Guide
Use MP3 when audio alone is enough; keep full video when visuals, slides, gestures, or screen context matter.
MP3 is lighter
Video is heavier
Audio only
Full visual context
Review and notes
Demos and evidence
Use MP3 for transcripts, podcast review, and lightweight sharing.
Use video when screen actions, slides, or visual proof matters.
For important work, keep the original video and share MP3 as a convenience copy.