This is completely off topic, but depending on the quality and thickness of the vinyl and the type of music I can most certainly here a change between a record and a cd. I find it's hardly perceptible on music such as AC/DC, Iron Maiden, and other essentially straight forward music. But if I'm listening to something like Animal Collective's older work or School of Seven Bells, where there is a lot of different sounds in different frequencies that are all going on at once, it's quite easy to hear a difference. You might have pops and so on on older records, but where it's not scratched I think they'll still sound better. I haven't really tested with older records before, but I garauntee something like AC, SVIIB, or **** Buttons will sound better.
Back on topic of compression, I've done a blind test and can definitely hear a difference between 192 and 256. 256 and 320 I really don't hear too much of a difference at all. This could be because per Satchmo's comment, if the frequency range is more or less the same once you get to 256 kbps. But in all fairness, I can hear up to ~20 Khz, which I know because I recently had a hearing test for the Navy. There may be differences between 256 and 320 but I sure can't hear it.
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