1 Page Sound Script

Hello! I need a simple 1 page .asp script that can merge 3 wav/mp3 files to one large file ([login to view URL] + [login to view URL] + [login to view URL] = [login to view URL]). The script should be cabable of receiving variables (=names of the files) for the sounds to edit ([login to view URL],[login to view URL],[login to view URL],[login to view URL]) via Get or Post. Existing sounds, created sounds aswell as the script are in the same directory on the webserver. That's it. Should work fast and reliable. Need it within 48 hours. The first who shows a working demo to me gets the job. Thank you for your interest!