Thanks for the feedback! Sorry if I was unclear. The comparison with PNG is very intentional to illustrate the vast difference in the compression efficiencies involved. I do state the difference clearly here though:
> This concept of throwing away bits you don't need to save space is called lossy compression. H.264 is a lossy codec - it throws away less important bits and only keeps the important bits.
> PNG is a lossless codec. It means that nothing is thrown away. Bit for bit, the original source image can be recovered from a PNG encoded image.
