I have created a beautiful 4gb AVI (all settings in the export were default). I need to shrink it down to about 1/4th the size, 75% smaller. Is there generally a "best" way to compress this, while gendrally keeping some semblance of quality as (good as possible), considering? I am on a deadline, so if anyone can just tell me simply as possible , like, "Convert to such-and-such," or "Get this or that app." I truly appreciate the advice.