[DirectX 8.1 C/C++ Programmer's Reference] Duplicating Buffers (100%)
DirectX 8.1 (C++) > DirectX Audio > Using DirectX Audio > Wave Playback in DirectSound > DirectSound Buffers
[DirectX October 2006 Documentation] Duplicating Buffers (42.6221804511278%)
DirectX Audio > DirectSound > Programming Guide > Buffer Basics