iTunes Error 42408 After 9.03 Upgrade

My iPhone, iPod and Apple TV will not sync with iTunes any longer. If I buy something from iTunes I can't use it. I'll save some money, maybe.
I appreciate all the work people have done here to assist others but the reality is MOST users are not able to keep up with all the solutions. APPLE needs to fix something.... there are other options out there.

I don't have an "SC Info" folder to remove! 😟

Works well, thanks. Don't leave the iPod plugged in after you've ejected it or it doesn't work!

Thanks Bludo, had same issue after upg to iTunes 9.0.3. n(see below)
Running Win 7 and found files on ipod in pod_Control\iTunes folder.
Moved these as you instructed and I found error gone & it was working again.
GOOD JOB!
ISSUE:
every time it (itunes) starts I get an authorization error.
Telling me I will not be allowed to sync songs I have purchased because the computer is not authorized.
OK - So I try to authorize OR deauthorize and I get the error:
----------------------------------------------------------------
We could not complete your iTunes Store request. An
inknown error occurred (-42408)

There was an error in the iTunes Store. Please try again later.
-----------------------------------------------------------

Note also tried removal of SC folder and toggle UAC. But did not work.

I apprteciate all the efforts to get these problems straightened out BUT... I still have an Apple TV, and iPod and an iPhone that will not "sync" with iTunes. They work well accept can't sync.
Is there another option out there we can try rather than iTunes....

[sigh] Bloody Apple. They clearly want to become an entertainment one-stop-shop, but when crap like this keeps screwing up everybody's purchases it ain't gonna happen. Their current DRM-obsessed experiment with Mini DisplayPort is doomed to screw up everyone's viewing pleasure too. I'm sick of this bloody company - and just a year ago I wouldn't hear a bad word said about them!

Anyway, back to the topic in hand. Trashing the SC Info folder worked for me but only when I did it after ejecting the iPod (doesn't say anything about this step in the article).

hello on that fix.. i tried to log back into the old account that i had before.. did the reset password, answered the security question. and set up a new one.. nothing. same fricken 42408 error. again this only happens on some of the older songs that I had from another account. my system got a worm virus so i had to salvage an old copy of a backed up i tunes. is there anyway out of this mess. i already lost over a thousand songs.

adrian

Remove SC Info worked for me. Thank you!

Thank God for Time Machine (and kudos to Apple at least for that). I went back and restored 9.0.2. Will be looking forward to hearing Apple's come up with a fix for this; in the meantime, I won't be upgrading iTunes anytime soon.

Well the 42408 returned just the other day, after days and days of no issues, connecting my iPod just fine, and then suddenly yesterday the error returned.

I will open another support ticket with Apple, the only way to really get the problem logged with them.

But after this massive screw up on the part of Apple and the 9.03 upgrade, it will be a long time before I purchase anything from iTunes for a very long time, if ever.

Is it actually possible to "restore" only one app such as iTunes without redoing all apps/documents? That might work. However, I did download 9.0.2 from another site and it did not work either for my ATV, iPod or iPhone. I still can't sync....

I'm also frustrated. Apple Care has been good in the past but I don't know whether this is an iTunes, iPod, ATV or iPhone problem. I do know that Apple charges about $90. per each Apple Care product.... This could be a money maker for them....

This solved it!

I received these instructions from Apple rep. They work UNTIL the computer is rebooted, then it is back to -42408 error.

I repeat THIS DID NOT WORK FOR ME:

To resolve this, I recommend getting rid of the SC folder and then uninstalling and reinstalling iTunes. Before beginning, please back up your iTunes library as explained here:

How to back up your media in iTunes
http://support.apple.com/kb/HT1382

To uninstall iTunes, please follow the steps in this article:

Removing iTunes for Mac OS X
http://support.apple.com/kb/HT1224

After you've uninstalled iTunes and removed the related files, you will need to reinstall it. You can download the latest version free of charge from the iTunes website:
http://www.itunes.com/download

After you've reinstalled iTunes, please ensure you have the latest version of QuickTime installed. You can find the latest version here:
http://www.apple.com/quicktime/download

If you continue to experience difficulties with iTunes after uninstalling and reinstalling it, you may wish to call our AppleCare technical support team. A representative will be able to tell you about Apple's complimentary and fee-based support options and can help you determine which option might be most helpful in this case. To find the appropriate phone number, please visit:
http://www.apple.com/support/contact/phone_contacts.html

I repeat ABOVE DID NOT WORK FOR ME.

Hi Roy,

Option 1 worked for me, many thanks.