I am not here to start another discussion on whether DVDShrink or CloneDVD is better.
But as far as picking up which audio stream is concerned, I found the audio preview function in DVDShrink very handy, indispensable indeed.
Recently I backed up "Finding Nimo" and there are 2 audio streams named as Chinese. They are about the same size. It turned out one is in Mandarin and the other is in Cantonese. With the audio preview function I could easily determine which audio stream I need.
I hope that this functionality can be added to CloneDVD. It may be even better if there is preview function for the subtitle becoz we have Simplified Chinese (PRC) and Tranditional Chinese(Taiwan & HK).