Too bad there's not much choice in the way of universal DVD changers. I thought it was an obvious market niche that needed filling, but I guess I'm missing something.

I did some very quick and unscientific testing on disc change times in random (shuffle) mode for my Yamaha C750. When playing in random mode across discs, it takes about 15 seconds from the time the music stops on one disc, until you hear it on the next disc. The time is the same whether it's changing CD to CD, or CD to DVD-A. If you love playing in random mode, the Onkyo is probably a better bet.

I also started another experient a while back and it's still in progress, but so far the initial results are encouraging: it seems that consumption of sufficient quantities of Bombay Sapphire reduces the apparent load time of any multi-disc changer dramatically. What's amazing is that it seems to work regardless of the brand of disc changer. As you can imagine, something this interesting requires a great deal of further study.