No not without an emulator program and PS1 bios
Playstation 3 can play old Playstation games, but Playstation 2 games are not compatible. You can load some playstation 2 games using the hard drive and an emulator, but not all.
pcsx2 IS an emulator for playstation 2. no difference x_x
As of April, 2009, no PlayStation 3 emulator has been developed or released.
If it didn't play PlayStation 2 games, it wouldn't be a PlayStation 2 emulator. So obviously the answer is no.
Burn it using NERO to a CD/DVD. Now you can use it. If you are using an ISO file of game then use a PlayStation emulator
People who are interested in downloading a Playstation emulator can use emulator-zone, which is a popular website for all your playstation download needs. It offers free software downloads as well as demos, and pricing packages.
There is currently no functional PlayStation 3 emulator in existence.
Ebay, amazon and many other online stores. Or you could download it from www.emuparadise.org and run it on PC using a PlayStation emulator. I don't know if writing the download onto a CD and using it in a playstation will work or not but it might if the playstation is chipped.
The ePSXe is a computer program witch emulates a Playstation one console. You can play most PSX game discs in your CD-rom drive.
All known Playstation emulators are available for download at www.emuwiki.com
emulators don't play original games, they only play ROM files which are made from the original games.