I am seeing two issues - 1) After loading several (>5) ISO's in the queue the ripper fails to load any more. The number varies, but is not more than say 10. The failure is either displayed by the loading progress bar continuing to cycle or it flashing up and going away without loading 2) after ripping 1 ISO Ripper fails to move to the next one in the queue, showing progress at 100% and having run for several hours (normal rip time seems to be between 15 - 22 min).