what moore suggested is illegal, not that i feel to bad about it. if you want free legal iso's to test out the software here are some sites
(if i am in any aximsite violation, please tell me. these are rom's but they are public domain, either created by amateurs, or demos given away for free by the producers)
http://www.zophar.net/roms.phtml?op=show&type=psx
and
http://www.pdroms.de/
are two sites with demo roms that are about the only truly legal roms u can use on the emulator. i would not rip the iso from blockbuster. if i were you i would just do a search on the psx game on ebay, they are old and prolly go for around a few bucks which is well worth it
and im glad to see that more people are visiting achilles-site and aximsite, odie, my two favorite message boards