When to use void[] vs. ubyte[] in D

Question

Is there a general rule as to when I should use void[] instead of ubyte[]? Is either preferred?

Answer 1

void[] for data that may contain pointers, byte[] for data that's actually just data, like network buffers or files. (I realize Phobos is inconsistent on this)

The reasoning is that the GC scans void[]s for pointers, but not ubyte[]s.