You can do that through explorer, just not as nice and tidy as the names are all hexed.
He's not talking about getting the music off his iPod, he's talking about playing the .AAC's he bought through iTunes/iTMS in Windows Media Player. And it sounds like he's got some DRM'd .WMA's in Windows Media Player, or I'd just suggest playing those in iTunes.
Unfortunately, with DRM, you're screwed. Your best bet is to find a way to strip the DRM off the .AAC's and .WMA's that you've got, then I'd recommend either converting them to .MP3's, or I know iTunes will play non-DRM'd .WMA's, so after stripping the DRM, I'd just consolidate everything into iTunes.
I don't know if Windows Media Player will play non-DRM'd .AAC's. I've not used WMP in years. If you're just hell bent on playing through WMP, then you'll need to also find out if there's a codec/filter for playing .AAC in WMP.
Beyond that, I'd further suggest sticking with one music service from here on out, so you don't have to worry about switching between multiple players to be able to listen to music.
Or just stick with .MP3's like I do, and not have to worry about any of this shit, as .MP3's can be played anywhere, with any software player, on any portable player.
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