Please tell me you're suggesting mass downloads for registered members.
If so, you deserve a cookie.
I think it should remain how it is for guests - like in
the Shrine, which doesn't supply FF tracks - and the option to download a [folder] for people who are signed in. I'm thinking a similar fashion to this:
As you may be able to see looking at the table of the soundtrack to possibly the best game for the PS1, I've highlighted "Disc One" with red around. I propose, by selecting [disc 1], the whole content be downloaded.
I'm not too sure about the technicalities of this, though...