Yea, I think the Playstation Store in general is down. I am not able to access it through PS3 or PSP. If the Black Ops DLC release was anything like the retail release, I can believe that the server(s) are just maxed/crashed.
maintenance, maintenance, MAINTENANCE!!! STOP POSTING USELESS THREADS!!!!!!!!
GO PLAY A GAME!!!!!
Also getting the same error. I am PSN + member, and I went to add a 20.00 PSN card that I know is activated and it told me there was insufficient funds on the card (I call BS), then I start getting this error every time I try and log into the store. Sometimes after fighting with it a bit I can get as far as Acc Management screen but this sucks. My plan was to add the card and buy First Strike for Black Ops. If this just used up my card without credit I'll be very very pissed.
What kind of moron who works at Sony would do maintenance on the PSN the day of the Black Ops First Strike content knowing there was going to be millions of potential downloads, and especially during prime time in GMT -8:00