If this option is checked, K3b enables Burnfree (or Just Link). This is a feature of the CD writer which avoids buffer underruns. Without burnfree, if the writer cannot get any more data a buffer underrun would occur, since the writer needs a constant stream of data to write the CD. With burnfree the writer can mark the current position of the laser and get back to it when the buffer is filled again; but, since this means having little data gaps on the CD, it is highly recommended to always choose an appropriate writing speed to prevent the usage of burnfree, especially for audio CDs (in the worst case one would hear the gap). Burnfree was formerly known as Burnproof, but has since been renamed when it became part of the MMC standard.
Se sinala esta opción, K3b habilita o Burnfree (ou Just Link). Esta é unha característica do gravador de CD que evita o vaciado do buffer. Sen burnfree, se o gravador non pode obter máis datos do buffer, ocorre un desbordamento, xa que a gravadora precisa un fluxo constante de datos para os escribir no CD. Con burnfree a gravadora pode marcar a posición actual do láser e voltar a ela cando o buffer estexa enchido de novo; porén, xa que isto conleva ter pequenos saltos de datos no CD, recoméndase escoller sempre unha velocidade de gravación axeitada para evitar o uso de burnfree, especialmente para CDs de son (no peor caso un podería escoitar o salto). Burnfree foi coñecido anteriormente como Burnproof, pero mudouse o nome cando foi inserido no estándar MMC.