format to save disk space, it is now largely considered obsolete by the PCSX2 community.
The problem was simple: speed. The existing CDVD plugins—the "CD/DVD" parts of the PCSX2 emulator—were polite but plodding. They read discs in real-time, forcing your PC to mimic the agonizingly slow 4x spin of a PS2 laser. Playing Final Fantasy X meant watching the FMVs stutter like a flipbook in a hurricane. linuz iso cdvd plugin better
Official English PCSX2 Configuration Guide v1.2.1 PDF - Scribd format to save disk space, it is now
While it was once "better," modern developments have largely surpassed the need for a separate Linuz plugin: format to save disk space