The uk based site www.ioffer.com has a number of copies of Melody on DVD. They are mostly home produced as far as I can tell and Region 0. It plays straight away and the picture quality is very good. I got mine for just over £8 (US$14) including P+P. The guy I got mine from goes by the name of BlueRule and is very quick - 2 days from ordering to receipt!! There are other sellers with the dvd though if he's out of stock.
shareThe film can be watched for free on google.video
http://video.google.co.uk/videoplay?docid=3578692700171397566&ei=ls-RSbeRF4jojgLPjdS8Cw&q=melody&hl=en
Not anymore. :(
This is from my brain, so no guarantees.
yes, try vicpine.co.uk, the copy is excellent, perfectly digital and comes with cover, picturedisc, cast list etc.
shareThe Japanese widescreen DVD release from 2006 is still available on Amazon's Japanese website (select the English option).
I have such a copy, and of the CD soundtrack with bonus tracks and the two Japanese TV re-unions. I don't bite, just ask!