Problem with playing a game....

Ok, I got the game silent hill but it's in ISO format.

I couldn't just play it like that with the emulator so I used MagicISO to convert it to a bin/cue. After I did that I tried opening it with the playstation emulator pSX_1_11 and it just said "CD not usable: failed to open file."

Anyone can help?

It should have worked ok from the ISO. If it also doesn't work from a bin/cue then it seems likely the disc image is no good.

Easiest method.

Try installing Daemon-Tools. Mount the Silent Hill's image file and Run the CD if you are using ePSXe.