CDs I don't understand...internet radio may depend on buffering that robs processing power. Playing CDS shouldn't be problem unless you have so little memory that OTHER programs in use are the problem...

That just an off-the-wall guess, though.

(I have a program called TClockEx that puts a time/date/calendar in my taskbar, and as a side benefit, allows me to show a 'memory load line' right under the time display....if I have done whole bunch of stuff that uses memory and doesn't release it, I can see that little green line creeping towards overload...shutting down, then reloading, a browser often clears it...)