Aspect Ratio

[osbord]

I frequently crop my images in various aspect ratios ranging from square to 25 x 4. I read something about needing all images to by 4 x 3. Is this true? If so, I won't be able to use this product.

Please let me know whether or not I can use multiple aspect ratios before I begin.

[mgilvey]

Check out the "8 mega pixel question". I sort of make a similar case. I'm amazed at how few comments there are in this forum. Either they got it absolutely correct or no one is using the product?