BCH Codes, or Bose–Chaudhuri–Hocquenghem codes, are a type of error-correcting code used in digital communications and data storage. They help detect and correct errors that may occur during data transmission or storage, ensuring that the information remains accurate and reliable. BCH codes are particularly useful in systems where data integrity is critical, such as in CDs, DVDs, and QR codes. These codes work by adding redundant bits to the original data, allowing the system to identify and fix errors without needing to resend the entire message. The strength of BCH codes lies in their ability to correct multiple errors, making them a popular choice in various applications, including wireless communication and data encoding.