Chrono Trigger PSX problems

[Kustjagare]

I´ve downloaded the FF Chronicles version of Chrono Trigger for PSX. The file format was .img . I used WinISO to convert the img-file to iso-format. Then I burned the cd with Roxio Easy-CD-Creator. Everything looked fine, and the burning was succesfull. I even checked the cd in my computer, and everything were there on the cd.

But when I put it in my modded playstation, the game just hangs itself when the Sony logo comes. The screen does look weird. Can anyone tell me what the problem is??

Thanks in advance.