What is difference between png8 and png24

Question

I want to know about uses of png files. There are two formats available for png images; one is png8 and the another one is png24.

Answer 1

Basic difference : a 8-bit PNG comprises a max. of 256 colors. PNG-24 is a loss-less format and can contain up to 16 million colors.

Impacts:

1. If you are using any round corner image then edges might visible in png8 format.
2. ie6 doesnt support png24 format.