Metal Slug 4 and 5

[YoungHov]

I tried to make a multidvd game using Metal Slug 4 and 5 but, CDVDGEN wont let me because the two games have the same folder names. I know I cant just rename the folder in windows, so how do I rename the folders so the game so the game will recognize it when it calls for it? I even tried to put them on seperate dvd's but cdvdgen gives me an "error too short sector length 600000". Tried using Hex Workshop to hexedit the SLUS file, but I didnt understand how to use that program at all.