@ KW  PI is probably Photo Impact, it's another Image Editor like PS

@ Jen   Aspect Ratio is the ratio of Width to Height so 2:1 is 2 units of width for every 1 unit of height. The old norm was 4:3 which was the aspect ratio of most Monitors (TValso) before Widescreen or say 1024x768 at 2:1 that would be 1024x512. I just got to like the 2:1 because it's a close approximation of the 70mm Panavision ratio I used in MojoWorld.

Remember...No matter where you go there you are