also known as :

マップス 伝説のさまよえる星人たち　オリジナル・サウンド・トラック 音楽集
CX-7303　

This is what it looks like

Japan Anime OVA Maps Hasegawa Yuichi Studio Gallop | eBay (http://www.ebay.com/itm/Japan-Anime-OVA-Maps-Hasegawa-Yuichi-Studio-Gallop-/251070967536#shId)

yeah I am also looking for that one.