文件类型1：Planetary Data System File
文件说明：Scientific data format created by NASA (National Aeronautics and Space Administration); used to store planetary, solar, and lunar data collected from earth and space missions.
PDS files often contain labels that are written in the Object Description Language (ODL); these labels use keywords that describe the data contained in the file.
Mac OSNASA PDS Tools Package
WindowsNASA PDS Tools Package
文件类型2：PowerDirector Project File
文件说明：Video project or slide show created with PowerDirector, a digital video-editing program; may include both video and DVD data for creating a DVD; often built from a template included with the PowerDirector software.
WindowsCyberLink PowerDirector 8
CyberLink PowerProducer 5