PS1 games freeze during cut scenes

Hi, I'm emulating ps1 games on my psp but the games I've tried so far freezes at the first cut scene that came up. The games were FF7 and Lunar silver star story complete. I converted using psx2psp v1.4.2 and followed this guide exacly: http://forum.romulation.net/index.php?topic=9995.0Can anyone help?CFW: 5.00 M33