Cost: $25 per year.
Works with: Mac or PC with iTunes 10.3.1 or higher; devices running iOS 4.3.3 or later.
Pros: Converts lower-quality recordings into high-quality 256-kbps AAC DRM-free files; minimal uploading.
Cons: No free option; the iTunes Match service is not yet available; works only with iOS mobile devices.
Thoughts: Of all the cloud-based options for getting your music collection online, iTunes Match is probably the easiest to use--at least in theory. The new offering is part of Apple's iCloud sync service for documents, apps, music, ebooks, calendars, contacts, and email. ITunes Match was supposed to launch in late October, but is currently in a developer-only preview. Apple has yet to officially announce a launch date for iTunes Match.
Once iTunes Match does arrive, here's how it's supposed to work: Apple compares your iTunes library against the iTunes Store catalog of 20 million songs, and automatically adds any matches to your iCloud account. If Apple doesn't have a given song, you then get the option to upload that file to iCloud.
You can have all songs in your iCloud account automatically download to your iOS devices (including Apple TV) and to your PCs running iTunes 10.3.1 or higher. We've also seen reports that the developer preview of iTunes Match includes a streaming option, but Apple has yet to officially announce that feature.
Any purchases you make via iTunes (including past purchases) automatically appear in your iCloud account, and do not count against iTunes Match's 25,000-song limit. You can use iTunes Match on up to ten devices, but only a maximum of five can be PCs; you can use iTunes Match on two Apple TVs. Since iTunes Match is in a developer preview right now, features are subject to change.
If you don't want to pay for iTunes Match, you will still have the option to download your past iTunes Store purchases to your other iTunes-compatible devices.
Cost: 2GB of storage for free; 50GB to 200GB available for $40 to $140 per year.
Works with: Windows, Mac, Linux, Android, Chumby, iOS, PlayStation 3, Roku, TiVo, Wii, Windows Phone 7, Xbox 360, and many other devices.
Pros: You can store up to 2GB of music (about 400 songs) for free; you can listen to your music on just about anything that can get online.
Cons: Service gets expensive after 2GB of storage; you have to upload your own music; the company has engaged in legal tussles with the recording industry.
Thoughts: MP3Tunes is a music locker similar to the Amazon and Google offerings. Unlike those two newcomers, however, MP3Tunes has been around since 2005, and has spent its time partnering with third parties to bring streaming of users' personal music collections to as many devices as possible.
You can search for free music online using Sideload.com, and save it directly to your MP3Tunes music locker, too. MP3Tunes recently won a decision in its ongoing court battle with label EMI--similar to Amazon and Google, MP3Tunes has not sought a license from music companies to offer its service to users. The decision allows MP3Tunes to continue operation; whether EMI will appeal the ruling is not clear.
Cost: Annual Gold Membership for $24; à la carte pricing options available.
Works with: Most modern PC Web browsers.
Pros: Lets you sell or trade your old CDs; removes your CDs from your house, but you still retain ownership of them; rip and download services available; somebody else rips your CDs for you.
Cons: No streaming; doesn't work with mobile devices; you must make a request for each CD you want ripped.
Thoughts: Of all the cloud options, Murfie is the most difficult to understand. The service bills itself as an online marketplace where you can buy, sell, or trade CDs from your collection. But it is also a remote-storage service that lets you store up to 1000 CDs from your collection for $12 per year. The jewel cases from any CDs sent to Murfie are recycled, and your CDs reside in envelopes at Murfie's storage facility.
To get started, you mail CDs from your collection using a shipping kit that Murfie provides for free. Then, in one or two weeks, Murfie processes your shipment and sets up your CDs in your personal online storefront on Murfie.com. From there, you can sell or trade your old CDs; you can set any price you want, and Murfie takes a 30 percent cut of any CDs you sell.
You can also request that Murfie create a digital version of your CD collection, which you can then download. Murfie will convert your CDs into the file format of your choice, such as MP3, FLAC, Apple Lossless, AAC, or Ogg. Once you request one of your CDs in digital format, Murfie grabs your physical disc, rips it to Murfie servers, and prepares the download as a .zip file containing the music, the file metadata for each track, and the album art. Typically it takes about an hour or less from the time you request a CD rip until you receive an email notifying you that the tracks are ready for download.
Clearly, the loophole here is that once you download a CD, you could then turn around and sell it through your Murfie storefront. To prevent such moves, Murfie prohibits you from selling or trading a CD until 30 days after you've downloaded it from the company's site. Murfie's terms also require you to delete any copies of the music on your hard drive once you sell your CD to somebody else. As far as I can tell, though, Murfie has no way to verify that you've done so.
You can find many other cloud music options for pushing your tunes off your hard drive and into the cloud, such as SugarSync and Mougg. Even generic online file storage services such as Dropbox offer limited online streaming capabilities for music collections. It's a cloud-based music world out there now. The only question is: Which service do you prefer?