Real.com: RealPlayer
http://www.real.com/player/index.html?src=homeintl_tw&lang=tw&hts=yes

GlobalSCAPE, Inc.: CuteZIP
http://www.cuteftp.com/products/cutezip/index.asp

Gracenote: CDDB (CD database)
http://www.cddb.com/

Audio and Music Software
http://www.singingelectrons.com
http://www.soundblaster.com