Why do many movie websites only support long-term players?

This is actually due to the economic network effect.

Established video websites such as Tudou and Sohu have formed a customer base. Most people watch videos on these websites. They have their own player, and the audience will not use the new player. For a long time, if this newly released player wants to compete with big-name players, it is necessary to cut off the network and let more people download and use this player for a long time. So many movie websites have been bound for a long time, so that movie websites only support long-term players, and even open their own movie websites for a long time. If the video player makes money, it is to make money by advertising on the video web page before playing the video, and then pay dividends to the movie website.

I haven't used the player for a long time, and I'm not sure where the advantages and gentleness lie.

I hope I can help you.