jpg gives a good quality for pretty much anything high-detail you wanna make, but remember tht gif is far more superior on a flat image that has no gradient. here's how it goes. gif starts out with a color, and it draws it intil instructed otherwise. that means, if your surface is flat, gif will draw the same colour over and over until it reaches another colour, meaning it will skip like 10-8000 pixels on average. that really reduces the file size. if you plan on using any type of gradient in a picture, then dont save in gif. if anyone agrees, just say so (so i know i've not gotten it wrong myself)