корекция на грешките(In Windows Media Player, a process to ensure that digital audio data is read from the CD-ROM drive accurately during playback or copying. Using error correction can prevent undesirable noises that are not part of the original material)
откриване на грешки(A technique for detecting when data is lost during transmission. This allows the software to recover lost data by notifying the transmitting computer that it needs to retransmit the data)