[quote name='studioaudience']Does anyone know how the RMA process works if one of the peripherals breaks down? Does the replacement have a 60 day warranty too? Or is it a one-time type of deal? The numerous reports about the drums/guitar needing to be repaired worries me.[/QUOTE]
So far, the RMA process has been super easy. You go to the EA Support site, and request a replacement. They don't require date of purchase, proof of purchase, or anything along those lines. If you give them your credit card number, they'll put a hold on about $125 or so, and then send you a replacement guitar/drums. They'll remove the hold when you send back the broken set.
If you're unwilling/unable to put that on a credit card, they'll send you a box for you to send your broken set, and they'll send a replacement upon receiving it.
Technically, I don't know whether the 60 day warranty period resets when you get a replacement or not, but either way EA seems to be helping everybody with broken peripherals, regardless of time. Of course, this probably won't stay this way forever...