Windows Registry Editor Version 5.00

HKEY_LOCAL_MACHINESoftwareMicrosoftMediaPlayer
SettingsMP3Encoding
“LowRate”=dword:0000dac0
“MediumRate”=dword:0001f400
“MediumHighRate”=dword:0003e800
“HighRate”=dword:0004e200

This corresponds to 56, 64, 128 and 192 KB rates in that order.
You can change the rates using these DWORD [hex] values for each of the Registry entries above:

56 Kbps = dword:0000dac0
64 Kbps = dword:0000fa00
112 Kbps = dword:0001b580
128 Kbps = dword:0001f400
160 Kbps = dword:00027100
192 Kbps = dword:0002ee00
224 Kbps = dword:00036b00
256 Kbps = dword:0003e800
320 Kbps = dword:0004e200

WHAT’S NEEDED! You’ll need to install a dedicated encoder to record or encode video, music, or audio using Windows Media Player 8 . http://www.microsoft.com/windows/windowsmedia/wm8/encoding.asp