How long to replace a Macbook superdrive @ Apple Store?

[tundotcom]

The superdrive on my Macbook doesn't pull the CDs in. When I first got it, I only had to put the CD in maybe half way, and it would pull it in. Now when I put it in, I got to go about till there's 1CM sticking out until I even hear the drive attempt to pull it in. Even then, it doesn't seem to grab the DVD and it just makes that awful sound. If I took it to the Apple Store, how long would it take to replace it? There's no Apple Store around here, but I recently go an opportunity to go a shopping mall that has one, but only for that day, so I can't afford to leave it there for a few days.