I don't claim to know much about Sirius, having tried unsuccessfully to use it here, but in so doing I was introduced to FStream, a free internet radio player from which you can record. If you can persuade the url of whatever Sirius station you're listening to into FStream, you're in business! FStream 1.4.2 software download - Mac OS X - VersionTracker
If you want to stay with Sirius, then Audio Hijack will record from it. AH is not free.
A friend of mine uses TimeTrax, though I don't know if they have a version for Mac. I usually just get my stuff from him, since we listen to the same music.
I don't know if this is the best way but you could use a line in cable for an ipod plug that into your raido and your mac and use a recoding software like wave pad to capture.
I don't know Replay AV as I'm not a Windows user, but there's a number of ways to record sound on a Mac. I happen to use the $32 Audio Hijack Pro and find it superior to all the alternatives.
As I mentioned above, I don't want to record from sound card with software like Hijack. I can use freeware Audacity instead of it, but I want to have a digital copy of the stream.
I'm confused. If you have a Sirius subscription, you can use any of a dozen or so programs to listen to that music on your computer. Audio Hijack Pro (and other such programs) record directly from the app you're using (whatever it is) to listen to the music. How is this not fully digital?
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