According to Mugglenet:

Warner Brothers Records has sent MuggleNet details about a special edition Order of the Phoenix soundtrack set. Encased in a custom hinged box with Navy “velveteen” fabric, the set also includes a 20-page booklet with a foil embossed front cover.
Check out your first look at this special edition soundtrack right here(I have my own link below)! You’ll see the box also has a clear plastic dome on the front with Voldemort inside. More details coming soon!

See a picture HERE
Thanks Mugglenet!