iTunes Error 42408 After 9.03 Upgrade

I got rid of the SC Info folder, rebooted, and it didn't work. I've read through four pages of this forum, and I can't figure anything out. I don't have enough computer knowledge to know what you all are talking about. It's so frustrating! HELP!!!!!!!!!!!!!!!!!!!!

My friend resolved the issue by signing me into iTunes Store, then signed me out, then deauthorized, then authorized, and it worked. All of this was done with the iPod disconnected from the computer.

I am becoming aware of a new means to "sync" with Apple and PC products. It is named "doubletwist" This program apparently does not have conflicts with Apple products and sync with all iTunes type products... Does anyone know more about "doubletwist?" Is this the answer to this "42408" problem for iPhone, ATVs and iPods???
I know you can goggle it to find out more....

I'm still getting this error message after following all of the steps. Is there anything else I can do?

Clearing the Safari Cache worked for me.

This worked for me as well. Amazing.

It does appear to be a 9.0.3 upgrade issue, since the problem seems to have started after I upgraded a month ago. My library does not have a "kind" attribute, so I couldn't test that method, but trashing the SC folder did the trick. I followed the steps indicated (closed all programs, moved the SC folder to the trash, restarted computer). I did attempt to reauthorize my computer, but iTunes said it already was, so that probably wasn't necessary. I was then able to buy a song right away. I have to assume this is a bug in the 9.0.3 upgrade - the installation routine should fix the SC folder issue automatically, not force the user to go through this nonsense.

Thanks for the help, Roy!

Lorenxo

Yes, but when you own an Apple TV, an iPhone and an iPod it's not that easy.... I would predict this will happen all over again when they upgrade 9.0.3 Have you heard of "doubletwist"? Will it do the same thing as iTunes...

I recently got a Netbook for Work & Travel to keep in communications without
being too cumbersome. But every time I use Home Sharing to copy a Movie, TV Show
or ITunes purchase from my main Desktop to my Netbook. The error comes back, and
I have to try one of the tips in this thread to resolve the issue.

It’s becoming very annoying. :-/

To those folks having this problem recur after having iTunes Sync once . . .

Do you have multiple computers you're synchronizing using MobileMe? Are you synchronizing Preferences?

This one worked for me, too! PowerMac G5 10.4.11 with iTunes 9.0.3 (15). Delete com.apple.iTunes.plist and re-authorize.

So, none of this works.

The SC folder? Not on my computer.

The files on the iPod that I should delete? Those aren't on my 1st gen iPod either.

Dragging the icon to the trash and starting over? Fail.

I can deauthorize the computer all day long, and it accepts both ID and password.

Trying to authorize fails every time.

iTunes 9.03, you suck. I may be angrier with you and Apple right now than I am with Congress.

I have 68 songs that are 'unauthorized' that I f-ing *paid for*, damnit. Don't release crap upgrades, Apple. P.O.S. software.

Roy, many thanks. You first set of recommended steps worked for me. Merci Beaucoup

Thanks a million for this post b/c it actually works. The latest iTunes update must have been buggy; Tons of my songs would not let me play them but just dragging and redragging the icon from the dock works. Saved me a ton of troubleshooting.

I tried what you suggested ae_8691, removing itunes from the dock and then re-dragging it from the applications folder back onto the dock and it worked! Thanks!