I am looking for ring binder similar to this one in attachment.
But it must:
- be: black and in A5 format
- have: at least 4 rings
- have: pockets (for business cards / CD) on the inner side of the front cover
- have: flap (not zip)
- I would also prefer snap instead of velcro fasteners

Anyone has seen something like that manufactured by worldwide brand? I've checked some offers with no luck.

Alternatively to pockets placed on the cover I could use some black and non-transparent heavier insert with pockets to hang on inner rings - but I can't find this one either... :(

Who uses ring binders?

Maybe you could try looking at Filofax?
http://www.filofax.com/
I browsed a bit there looking for a nice diary, but didn't quite find one.

Me? They have a lot of uses, even today. Sometimes it is much better to display something on paper than on screen.

As I see they do not have any black A5 folders / portfolios. They do have A5 organizers - but I can not see an option to buy them empty (without any inserts)...