An encoding error is an error that occurs during the data encoding process. Depending on the nature of the error, the coding error results are variable. Encoding errors happen for a wide variety of reasons with all types of technology, although there are a number of protections in place that are designed to minimize or prevent such errors.
woman holding a disk
In encoding, data is transferred from one format to another. Encoding is often used to compress data so that it takes up less space, such as when a raw audio file is encoded to fit easily on a CD. In addition to encoding for storage, data can also be encoded for transmission; that same audio file, for example, can be encoded so that it can be incorporated into a live broadcast from a radio station. Encoding is also used for the purpose of encryption, a technique used to secure data by ensuring that it can only be read by people with the correct decryption equipment.
Sometimes an error occurs during encoding because the original data itself is corrupted and the program doing the encoding has difficulty processing it. Errors can also occur when a system’s memory is overused during the encoding process and is not able to process the encoding smoothly. Likewise, confusing commands issued to a program can interrupt the encoding process, as can events such as a power outage. It is also possible that a coding error is random in nature with no apparent cause.
A content encoding error can be fatal. In such cases, the newly encoded content cannot be accessed due to the magnitude of the error. The content may not be recognizable to the program that must decode it, or the content may be so corrupt as a result of the encoding error that large blocks of data are missing and make no sense. For example, a video embedded in a web page may not play due to an encoding error.
Encoding errors can also cause glitches such as skipping a CD, distorted sections of text, or other problems. In these cases, the error does not make the content completely unusable. Even so, it can pose an obstacle for someone who wants to access the data.
Due to the risks of coding errors, people often make sure that the original data is backed up before proceeding with a coding project. This ensures that if an error occurs, the data is not irreparably lost.