Colin Wilson's Delphi Components
   Delphi 3/4 midi and mixer components. Freeware
   http://www.wilsonc.demon.co.uk/delphi.htm

Dragon Enterprises
   Dragon Flic Player32 and Flic Panel Shareware
   http://freespace.virgin.net/paul.kuczora/

Multimedia Tools
   Component library provided especially for developing multimedia applications. Easy to use and professional, with visual design capabilities, flexible architecture of components, optimized code and very extensive.
   http://www.swiftsoft.de/mmtools.html

Praktical.com - Ultra Tech Delphi Components.
   Organic Shape Pack to make your applications skinable like WinAmp. And PanoMax Panorama Component to render real-time views of panoramic (360 degrees) images, giving a Virtual Reality-like immersion feeling.
   http://www.praktical.com/