Higher v1.6 is more accurate emulating than v1.5 for example the game Kingsley's Adventure had tons of bad graphics but not in v1.6. There are two versions, first dL is more recent v1.6.0 (aka 2006) and the second dL is a beta version ('1.5.0 test 3' aka 2005). (For Intel Macs, see PCSXR.) Our Macintosh apps were ported from PC hence the name this was given 'pCsx'. OS X for PowerPC has this PlayStation 1 emulator that is free and open source.