There is only one file type that uses the .LPP extension:
LabelPrint Project File
CD/DVD label design created by CyberLink LabelPrint, a program used for designing disc labels and jewel-case inlays; can be a design for a disc, mini disc, front cover, back cover, or disc inlay; often contains disc art, a song list, and artist information.
LPP files can be printed to special disc label paper when complete. LabelPrint supports many different paper and printer formats.
Updated: June 17, 2012