GT3 Rip Guide
 

I am ripping GT3 so i got the guide Gran Turismo 3 A-Spec Ripping Tutorial (Pal and USA) By Morganator
i dont understand Step 3

Step 3, Go into the folder called stream and downsample the following files while deleting the remaining ones.

course.ipic
apricot_full.pss
akasaka_full.pss
deepforest_full.pss
the list continues with lots of .pss files

Wat does it mean?

to downsample is to degrade or lower the quality and size of a file this is done using a combination of programs youll have to refer to some website tutorials for that seeing as how I don't have the ifo on hand sorry my answer is so vague

Could any1 refer me 2 a website 2 help me downsample the .pss files

http://ps2modz.cjb.net
www.megagames.com

Just got of curiosity, why would you want to downsample those files?