That's a very interesting tool. I'm wondering if I haven't found a limitation to it though... I have a backup set (one drive on one machine) that has 212000 files... when I look at the results of catdump, the results just stop somewhere along the way...
It outputted 68074 lines (after the header) and stopped mid-line... it didn't finish the file name on the last line... If I look at the catalog in BENT, there is clearly more on the tape though... Weird...
Still, a usefull tool.