Hi Craig, I have listened to XM online and it sounds good, like XM satellite but is probably not up to the quality of cds on your system. I found the info below on Wikipedia:
Audio (MP3)
32 kbit/s MW (AM) quality
96 kbit/s FM quality
128160 kbit/s Standard Bitrate quality; difference can sometimes be obvious (e.g. lack of low frequency quality and high frequency "swashy" effects)
192 kbit/s DAB (Digital Audio Broadcasting) quality.[1]
224320 kbit/s VBR to highest MP3 quality
800 bit/s minimum necessary for recognizable speech (using special-purpose FS-1015 speech codecs)
8 kbit/s telephone quality (using speech codecs)
32-500 kbit/s -- lossy audio as used in Ogg Vorbis
500 kbit/s1,411kbit/s lossless audio as used in formats such as Free Lossless Audio Codec, WavPack or Monkey's Audio
1,411.2 kbit/s PCM sound format of Compact Disc Digital Audio
Audio (MP3)
32 kbit/s MW (AM) quality
96 kbit/s FM quality
128160 kbit/s Standard Bitrate quality; difference can sometimes be obvious (e.g. lack of low frequency quality and high frequency "swashy" effects)
192 kbit/s DAB (Digital Audio Broadcasting) quality.[1]
224320 kbit/s VBR to highest MP3 quality
800 bit/s minimum necessary for recognizable speech (using special-purpose FS-1015 speech codecs)
8 kbit/s telephone quality (using speech codecs)
32-500 kbit/s -- lossy audio as used in Ogg Vorbis
500 kbit/s1,411kbit/s lossless audio as used in formats such as Free Lossless Audio Codec, WavPack or Monkey's Audio
1,411.2 kbit/s PCM sound format of Compact Disc Digital Audio