Yeah, here's what it says on the website:
Zune® Marketplace is loaded with more than
3 million songs, albums, DRM-free MP3s, music videos, audio/video podcasts and more! Your store is always open and just a mouse click away.
DRM-free MP3s. Choose from a selection of more than
1 million DRM-free MP3s. Download to play on your Zune device or any other MP3 player.
Download or subscription? Downloading songs and music videos a la carte from Zune Marketplace is simple using Microsoft® Points, which work across both Zune and Xbox LIVE® Marketplace.
Or choose a Zune Pass subscription, which gives you access to unlimited music downloads from millions of available songs for a flat rate of $14.99 per month. (DRM-free MP3s, videos, and some songs are not available via Zune Pass.) Fill your device with new music whenever you want and keep those songs as long as you keep your Zune Pass up to date. A Zune Pass can be used on up to three PCs and three Zune devices, making it the perfect choice for families and music lovers.
source:
zune