My original 360 broke after 3.5 months, then I got a replacement, from day one the disc drive didn't open on the first try, some times I have to press eject 2-3 times, also when discs stop spinning it makes a loud whirring noise, there's been times when I've opened the disc try to find the disc still spinning on it, I'm amazed none of my games have been damaged.
This doesn't bother me too much as I have found a way to open the drive on the first try, just push the tray slightly in and then it gets out.
What is really making me angry is that sometimes the disc drive tries to open itself when I'm playing a game, which means I loose whatever I achieved in the game (not nice when you are near the end of a 50+ minute race on Forza 2) as it goes back to the blade menu and the part that tells you what game is in reads "Opening" and the power sign constatly flashes like when you open the tray.
Also I've had a couple of screen freezes, once on Gears and another on Forza 2 in the last couple of days, nothing happens when I open the tray so I have to turn it off.
I think my replaced 360 might be on it's way out after another 3-4 months.
I don't know if any of you guys have had this kind or issues with yours.
Of course I've thought about contacting MS about sending it back to be checked but I don't fancy waiting about 1 month or more to get it back, 10 days or so was not too bad first time around but I don't want to be 1 month or more without the 360, specially now that the great games are coming out.
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