目前世界上已出现了多种形式的光盘数据库信息服务模式。基于虚似网络的光盘数据库信息服务模式是在互有信息交流的信息机构之间建立一定的联系 ,形成一个虚拟网络 ,借助电话、传真和因特网上先进的传输工具共享它们拥有的光盘数据库。它可使光盘数据库充分发挥效能 ,使信息服务机构获取最大收益 ,还可避开基于广域网的光盘数据库信息服务中引起的版权之争 At present, many forms of CD information service modes have appeared in the world. Based on the virtual network CD-ROM database information service model is to establish a certain relationship between the information exchange of information exchange, the formation of a virtual network, with the telephone, fax and Internet transmission tools to share their own CD-ROM database. It can make full use of CD-ROM database performance, so that information services to maximize the benefits, but also to avoid copyright issues arising from the CD-ROM database information services