I see, thanks for the info unikron!
. I've applied them I shaved off a good 70MB from our file size! (from 420MB to 350MB)
I do have another concern though, while I was able to shave off some file size, I'm having a few crash issues on the iPad1. I'm working towards a full 32-bit game for the iPad 1 and 2, and while it does run on iPad 2 (with a few occassional lags), it seems to crash occassionally on iPad 1 due to memory warnings.
I've searched around and it seems there aren't much discussions out there for 32 bit images running for the iPad1. Is it really recommended to build at PVRTC 4 format for iPad 1? I was comparing some assets and found them to become quite blurry/pixelated when I compressed them to PVRTC, and I was really hoping to make the game look as clear as possible.
I hope you can help out again, thanks!