1	RealAudio 28.8 Mono Voice
2	RealAudio 28.8 Mono Pop
3	RealAudio 28.8 Mono Instrumental
4	RealAudio 28.8 Stereo
5	RealAudio ISDN Mono
6	RealAudio ISDN Stereo
7	RealAudio Dual ISDN Mono
8	RealAudio Dual ISDN Stereo
21	Use to optimize speech over 28.8 Kbps modems.
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\nFrequency response: 4.0 kHz.
22	Use for musical selections that include snare drums, cymbals, and vocals.
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\nFrequency response: 4.7 kHz.
23	Use for instrumental, classical and other music needing the widest frequency response.
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\nFrequency response: 5.5 kHz.
24	Use for general stereo content.
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\nFrequency response: 4.0 kHz.
25	Use for general mono content over ISDN connections.
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\nFrequency response: 11 kHz.
26	Use for stereo content over ISDN connections.
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\nFrequency response: 8 kHz.
27	Use for optimal quality for mono content.
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\nFrequency response: 20 kHz (CD Quality).
28	Use for optimal quality for stereo content.
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\nFrequency response: 16 kHz (Broadcast Quality).
41	28.8 Voice
42	28.8 Pop
43	28.8 Instrumental
44	28.8 Stereo
45	ISDN Mono
46	ISDN Stereo
47	Dual ISDN Mono
48	Dual ISDN Stereo