Stereo .wav files are NOT supported by MCP

SUMMARY: Stereo .wav files are NOT supported by MCP. This must be documented in the GVP User Guide.
The next publication of the GVP 8.5 User's Guide will include this revision:
CHAPTER: Appendix B Media Control Platform Reference Information
SECTION: Audio and Video File Formats

Add the following Note after Table 89 "Supported Audio File Formats – Play":

---

Note: Only mono (single-channel) is supported for container/file types .au, .avi, .nist, and .wav – i.e., stereo is not supported.

---