This is often due to a faulty CD/DVD disk or drive, or a faulty hard disk. It may help to clean the CD/DVD, to burn the CD/DVD at a lower speed, to clean the CD/DVD drive lens (cleaning kits are often available from electronics suppliers), to check whether the hard disk is old and in need of replacement, or to move the system to a cooler environment.
Sebba n wayagi di tegti d aḍebsi CD/DVD neɣ aḍebsi aquran ixesren, iwakken ad tefruḍ ugur-agi tzemreḍ add tsefḍeḍ aḍebsi CD/DVD, ad tserɣeḍ aḍebsi CD/DVD s urured anadday, neɣ ad tsefḍeḍ tiniltiyin n yiɣeɣri n CD/DVD (ttawilat n wesfaḍ wejden ɣer yimzenzuyen n dduzan ilikṭrunanen), tzemreḍ daɣen ad tmuqleḍ ma yella aḍebsi aquran d aqbur u yesra ad yettwabeddel, neɣ ad tesmuttiḍ anagraw ɣer twennaḍ isemḍen ugar.