The compliation is well worth seeking out if you can find it. Haven't seen it out for ages so it could be out of print now.
It's been awhile so I just checked out Ravens website. Looks like THE OTHER ENZ has now sold out- so you'd probably have to try Ebay, Record Fairs etc for copies if searching...
Second hand copies from £6.99
The Record Fair at Box Hill (late August) a few copies were floating about- around the $20 mark. Aussie fans could try DIXONS second hand stores they usually have them.