Decoding .cwav files

So there's this neat PC shmup called Radio Zonde that's like the hardest thing imaginable (okay, maybe not Dai Ou Jou hard). But since I rarely play video games any more (), and this is the Behind the Music forum, let's talk about the tunage. Some of the songs are kinda neat, and I'd love to be able to hear them for more than five seconds without sound effects before biting the dust.

Cracking open the game directory, the likely suspects for music files are these tracks with .cwav extensions: stage1.cwav (which I've uploaded here as a sample), credits.cwav, boss4.cwav, etc. They're definitely not normal WAV files with an extension swap, because changing it doesn't work on both my Mac and all the players I have and Winamp Lite on this Windows lab machine I installed the game on. (Plus, there are some normal .wav files for sound effects, so it wouldn't make sense to change some but not all.) I have not tested the file extensively with Windows media players because I've never had a particularly reason to know about a great many of them, never having owned a Windows computer of my own and all.

Opening up the sound files in a trusty text editor, I found they all start with "CmpWave." Googling this header came up with a staggering three hits, all in Japanese, of course. The seemingly most useful one, http://www.hp.infoseek.co.jp/~toll/sof/ori.htm, references CWaveConv.exe and CWPlay.EXE, as well as an "AbR AdventureRunningSystem SoftwareDevelopmentKit." The link to download this kit is broken, but by directory-diving, I found one, http://download.vector.co.jp/pack/wi...SDK_040930.ZIP. This archive doesn't contain either of those executables, but since I can't read the page, I don't know if it's even supposed to. And searching Google for the executables only hits the same pages that come up with the "CmpWave" search, so I really have no idea if these programs even exist.

One of the other hits, http://www2.pf-x.net/~soft186/kako/1077539155.html, has the English phrase "Cmpwave Compress .cwav wave" in it. So maybe it's a compressed WAV file? That would certainly explain why no players have been able to open it. But I don't know with what to decompress them with.

Does anyone have any clue how to play/convert these suckers?

Jam it back in, in the dark.

There's a link in the second paragraph of the opening post. Maybe I hid it too well. =O

http://www.quiteajolt.com/gff/stage1.cwav

Thanks for offering to take a shot at it.

How ya doing, buddy?