I want to convert some of the AVI files I recorded (presentations) to FLV so I can host them on a website and offer them to my visitors. I have done this sort of thing before but the quality they came out as would not be good enough for what I plan on doing here.

So does anyone have a link to a guide or any experience they can offer in converting AVI to FLV with minimal quality loss? A lot of my presentations are 720p aswell, so I'd want to keep the aspect ratio the same as the source video.

Thanks in advance.