When looking for a "highly compressed" version of Dragon Ball Z: Budokai 3
Be extremely cautious when downloading "highly compressed" files from unofficial sources.
chdman (part of MAME tools) to convert your own ISO to CHD. It’s lossless and reduces a 4GB game to roughly 1.2GB with no performance hit in PCSX2.contains significant "padding"—empty data sectors used to fill the physical disc to ensure faster seek times for the console's laser. High compression begins by "scrubbing" this padding. Zero-Filling
Please note that I won't provide direct download links or host the game files myself. However, I can guide you on how to find the game: