C# - Byte Größenangaben als String formatieren (KB, MB, GB, ...)

public string ToFuzzyByteString(long bytes)
        {                    
            double s = bytes; 
            string[] format = new string[]
                  {
                      "{0} bytes", "{0} KB",  
                      "{0} MB", "{0} GB", "{0} TB", "{0} PB", "{0} EB"
                  };

            int i = 0;

            while (i < format.Length && s >= 1024)              
            {                                     
                s = (long) (100*s/1024)/100.0;  
                i++;            
            }                     
            return string.Format(format[i], s);  
        }