In wodim one can choose between many different writing modes like Disk At Once(-dao), Session At Once(-sao), Track At Once(-tao) or Raw writing mode(-raw). As I understand, Track At Once writes one track at time while in SAO and DAO modes laser does not stop between tracks. Is this important only in case of audio CD's and there is no difference in case of data CD's(for example burning Linux distribution image)? In addition, even in case of audio CD's and TAO mode, how does wodim know where one track starts or ends? Am I correct that SAO mode allows one to write multiple times to a CD-R media? Last but not least, in which case is raw writing mode useful?
understanding -dao, -sao, -tao and -raw writing modes for wodim in practice
data cd;audio cd;burning