This Mixed Reality Equipment(MR) can record the video data with a key in which is the ID of MR and recorded time.The MR uploades the video data on a media server. The MR has a group video-calling feature.You can communicate between all MR. When wearing this MR, everyone can enjoy conversation and a video.This conversation method can reduce the time for the server to answer a request. It does so by means of a storage medium for storing a program-code read which is executed by a computer comprising. It means that this method can support a greater number of clients. And this method can reduce process time for multimedia server to answer the request enough.