iTunes DRM-Free Files Contain Personal Info

r2k writes "Apple's iTunes Plus files are DRM-free, but sharing the files on P2P networks may be an extremely bad idea. A report published by CNet highlights the fact that the account information and email address of the iTunes account holder is hidden inside each and every DRM-free download. I checked, and I found I couldn't access the information using an ID3 tag editor, but using Notepad I found my email address stored inside the audio file itself."

Comments

Re:Seriously...

[halcyon1234]

Let me throw you a hypothetical here.

Suppose I hated you. I see you have a link to your homepage-- many users do. That page, being an expression of personal taste, might have information about music you like. Yours does. Now, yours is a "CD collection", but it could just as easily be a list of songs you bought of iTunes (as many other users do, in a list, in their blog, etc). So I pick something from your list, say A Perfect Circle - Emotive (good choice, BTW). Google tells me your real name is Zach Robinson. One of your email addresses is zachd at microsoft dot com (obfuscated for your benefit). So I whip up a batch of itunes encoded A Perfect Circle with your name and mail address in it. I throw them on all the P2P sites I can find, wait a couple weeks, then drop a dime to the RIAA. It's trivial moments of effort for me.

Now you have copyrighted music with a label that says "owned by Zach Robinson" floating around, and a group of lawyers looking to extort a couple grand out of you. Sure you could make up a fake name and a fake email address that you use exclusively for purchasing from iTunes-- but why should the onus of not being sued be on you? Or, why couldn't Apple instead have taken a secret internal customer id number, hashed it using the date/time of purchase as a salt, run it through a secret algorithm, and slapped that into the "owned by" field so that I couldn't reproduce it? (Until their method is cracked and we're back to square one, that is)

Really, it all comes down to normalization. What describes a song? The artist, the album, the year of release, the genre-- all that fun stuff. Does YOUR name and email address describe the song? No. Then it doesn't belong in a song file. It belongs in your iTunes account, along with a list of songs you "own".

So it only serves to harm the innocent, is a poor method of tracking ownership, and introduces unrelated data to a set. There is NO reason for it to be there.

Re:Seriously...

[pdbaby]

I've mentioned it elsewhere but songs are also encoded with the purchase timestamp. So if you've no access to someone's files then you've essentially zero chance of getting the purchase timestamp right, even if you get the songs they own right.