Changing CD - whether the new CD can be opened

51823 - WORKS
52171 - WORKS
52350 - WORKS
52367 - WORKS
52370 - WORKS
52371 - rev not available for download
52372 - stalls - change to CDFS committed
52375 - stalls
52384 - stalls
52420 - stalls
52500 - stalls
53599 - stalls
54656 - stalls
54905 - stalls
55050 - stalls
55057 - nothing happens - change to CDFS committed
55081 - nothing happens
55125 - nothing happens
55200 - nothing happens