Windows 7: Itunes vs. youtube for good quality sounds?

This may be the wrong location to post this but what the heck.

I very seldom buy a music CD for the simple reason there are a few songs that I like
on the CD the rest I can do without.



What or Where can I download good quality tunes that I will be happy to pay for so
I can save them to a thumb drive or burn a CD with songs and artists that I like?
This way I can take my Thrive Tablet and let my wife listen to it while she gets her
3 hour IV Infusion.
Oh! I don't have a new cell phone that will allow me to do this. My cell is older than dirt( just like me) and use it strictly when I am away from her and emergencies.

Any and all help appreciated.
THW