Typically anything over 128Kb sounds great (IMO). I rip some of my CDs at 192 and its even better. I tend to notice the same artifacts in the audio of a .cda encoded file as may be present in the .mp3 encoded files. And really, most of the artifacts in the audio I notice are .mp3s that I'm listening to through noise-cancelling headphones. Rarely does a .cda formatted track take away from any listening experience - unless it was a .cda that I converted over from a low-quality .mp3.
If it's an .mp3 I didn't encode myself, it may not have been ripped/encoded using CD quality or better encoding methods And you can transfer directly from an audio CD to .cda format, or you can convert an .mp3 to .cda format, so you can keep the sound as close to the original as you can.
Titanium Grey Metallic/Red
Rotary Accent Package