I used to think having the disc number in Name mattered, but eventually decided it was better to do without. I want multiple files stacked anyway, and when they are, I want Name to be the title alone. It has no bearing on the order they're played in. I rarely unstack them, and when I do, I can use Filename to tell them apart. I suppose an expression could be used to get the disc number from the filename, but it doesn't seem worth the trouble.
But maybe I'm missing something here. What do you mean by "PVD would then act as a filename parser for MC"?