I downloaded a presentation from internet. The file is in rmvb format. It must have been made by some idiots cause the original sound volume is very very low. I tried to increase the volume of the real player and of my computer, didn't work. The loudest I can hear was some murmuring when the speaker of the presentation started a joke and people laughed.

Is there a way to increase the volume?

any luck on a google search "rmvb format" and edit?

I tried, but many of these just say that they can fix a file that is not completely downloaded.