i would guess the problem is prolly that it cant find that files you are referencing... the way i did it was to 'give it directions' on where those files are from the root of the AIO DVD.. so my code looks like this... stm_aix("p3i4","p1i0",[0,"Microsoft Windows XP Pro","","",-1,-1,0,"mkiso:..\\SETUP\\XP\\BOOT.BIN:VRMPVOL_EN:..\\SETUP\\XP:Windows XP Pro.iso"],365,0); here is a little breakdown of the commands (i'll put the info in parenthesis)..... "mkiso:..(the dots tell it to start from the root of the drive)\\SETUP\\XP\\BOOT.BIN(this is the location of the file to make it bootable):VRMPVOL_EN(the internal name of the ISO thats being created):..\\SETUP\\XP(the path to the location of the files to be included in the ISO, again given from the root of the drive):Windows XP Pro.iso(the name of the completed ISO)" Also, in your menu.ini, I noticed something with the DVD Decrypter... Mine is as follows # DVDDecryp*er is used for recording the ISO-Image # created by CDImage [DVDDec] Path=TOOLS\DVDD******.exe Not sure if its different because youre using php, but i wouldnt think so. Let me know if that helps any.