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இந்தக் கோப்பு கூடுதலான தகவல்களைக் கொண்டுளது, இவை பெரும்பாலும் இக்கோப்பை உருவாக்கப் பயன்படுத்திய எண்ணிம ஒளிப்படக்கருவி அல்லது ஒளிவருடியால் சேர்க்கப்பட்டிருக்கலாம். இக்கோப்பு ஏதாவது வகையில் மாற்றியமைக்கப்பட்டிருந்தால் இத்தகவல்கள் அவற்றைச் சரிவர தராமல் இருக்கலாம்.