iamhyd's post in Invalid format (script column) in item_db.txt was marked as the answer
Hope this one helps you.
19125,Cylinder_Hairband,Cylinder Hairband,4,10,,30,,12,,1,0x00040000,56,2,256,,90,1,1413,{ bonus2 bVariableCastrate,"GN_CARTCANNON",-100; bonus2 bSkillUseSP,"GN_CARTCANNON",30; bonus2 bSkillUseSP,"GN_CART_TORNADO",5; bonus2 bSkillAtk,"GN_CARTCANNON",10; bonus2 bSkillAtk,"GN_CART_TORNADO",5; if(.@r > 4) bonus2 bSkillAtk,"GN_CARTCANNON",20; bonus2 bSkillAtk,"GN_CART_TORNADO",10; if(.@r > 6) bonus2 bSkillAtk,"GN_CARTCANNON",30; bonus2 bSkillAtk,"GN_CART_TORNADO",20; bonus bStr,5; bonus bInt,5; },{},{}