Which aspect is crucial when choosing to use video files in an online event?

When it comes to using video files for an online event, the delivery method and its reliability are paramount. This factor directly impacts the event's overall experience. Reliable delivery methods ensure that videos maintain quality, avoid buffering, and can reach the audience without interruptions. If the delivery method is poor, even the best-produced video content can fail to engage viewers, which detracts from the event's effectiveness and professional image.

While the length of the videos, whether they are live or recorded, and the production cost are all important considerations, they are secondary to the foundational concern of how the video will be delivered to the audience. A poor delivery method can overshadow the content regardless of its length or production quality, leading to disengagement and frustration among attendees. Thus, focusing on reliable delivery methods can significantly enhance the success of an online event.