My advice is to post in the proper forum. This is a PS2 forum, not a "emulate PS1 on PC" forum. My further advice is to click the search button at the top and read some old threads before posting as there are probably dozens to hundreds of threads on the topic. Your question is the kind that irritates people as it shows you haven't bothered to look for any info yourself. So do a little legwork and you'll avoid getting flamed for being a noob.