I was curious, since I own both a 3000 series PS2 and a 5000 series one, and the 5000 one seems to collect a lot more dust. It leaves dust on my games (but no scratches, so it's not that big of a deal) however, when playing the 3000 one, I see virtually no dust on my games at all. --- Ron Paul 2012
The DVD laser was upgraded, alot less DREs from the 5000 series if I recall correctly (though that could also have been done in the 3900 model). --- "Aren't you the guy that bought expensive HDMI cables claiming cheap ones funded terrorism?" -The Killer 5
iLink is on the older system, and is a FireWire connection to LAN systems together for multiplayer/multisystem play. Ethernet is a lot easier to get equipment for, and to configure, so they dropped iLink, but some older games can't LAN with ethernet., Also, built-in IR sensor for the remote, and a lock on unofficial discs that broke compatibility with some older cheat device versions. --- http://bungiefan.tripod.com/psbbn_01.html My PlayStation2 HDD guide. Made with a Japanese PS2 with a HDD and PSBBN 0.20-0.31.