void[] vs byte[]

[Yao G.]

I'm here with another n00b question:

When dealing with big buffers (or files), which is better to use as  
storage? void[] or byte[]?

What are the advantages and disadvantages of each one? I've seen that  
void[] is used in some Phobos modules, like std.zlib, and in other modules  
the choice is byte[] (chunk in std.stdio).

Is there a place where this stuff is documented? Or choosing one or  
another is just a matter of preference and the differences are trivial?

Thanks in advance.


--
Yao G.