Sorry if I'm mis-posting this, I'm not sure what product to use.
I have an FLV, that I need to remove one section of video, and swap a PPT slide in it's place. However I need to preserve the audio in this section.
I'm pretty PC savvy, but don't know what tool to use to separate to pieces so that I can repackage it.
I also have it as a WEBM file if that helps.