Trouble with burning 5.5gb PS2 ISO when it supposes to be 4gb

I have Forbidden Siren 2 for PS2…after unrar it, it’s 5.5gb ISO. I used Magic ISO to take a look what’s inside, it only has 4gb of data.

I tried Nero, Alcohol, dvd encrypter, magic ISO to burn the ISO…they all say the image is too large. What do I do??? :sad:

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