Why “Buffer Underrun” error appear, when recording is proceeded?
This is caused by the termination of recording when there’s no data in cache buffer. To avoid the termination, it is better to defrag your hard drive and stop all other running programs before recording. Trying to reduce the recording speed can improve the situation as well. If this situation only takes place when recording on the fly, it is very likely that the extraction interrupt is resulted from the damage of the original disc.