Buying Music from Other than iTunes?

flyingember asks: "I own an iPod and use iTunes music store. It's easy and it works. My mom likes her tiny Philips Rush player, as she prefers small for her devices. Now, she wants more music, and is willing to pay for it. She runs Windows 98SE, because she likes it and work hasn't upgraded to XP, yet. Does this sound like anyone you know? Is there a service that supports Windows98, a ton of players, and has good variety? I'm willing to put up with WMA's, if compatability is there. Napster is 2000/XP only; Musicmatch does not support her player for downloads; Buymusic seems to be the same; and Emusic doesn't have the right music. Is there a legal download service for people that don't have an iPod that just works?"