From cdjapan:
Battle Spirits - Ryuko no Ken
Catalog No.: MJBD-70144
Media: DVD
Release Date: 2003/09/26
Price: 5700 Yen(US$ 48.70)
Cast: Tetsuya Bessyo, Masanori Ikeda, Ayumi Hamasaki, et al.
Description: A TV special anime based on the fighting game from SNK.
Edition Details:
* Running Time: 46 mins.
* DVD Video
* Color
* Layers: single-sided/single-layered
* Aspect Ratio(s): 4:3
* Regional Encoding: 2
* NTSC Format
* Audio Track : Japanese/Dolby Digital/2.0ch
http://www.cdjapan.co.jp/detailview.html?KEY=MJBD-70144