If you are new here, you must read BSPeter's
"READ THIS FIRST BEFORE POSTING" post.
And if you want to know which codec to use with which video, then, still in BSPeter's post, take a look at
adicoto's list of codecs.
There's no need to upload ALL the codecs to rapid or mega, you only need codecs for the video format you have, nothing else, otherwise you can incur in conflict problems and bad playback performance