Macbook Drive sounds different than Powerbook/ibook/macmini when loading

I was wondering if anyone that has a macbook and an ibook/powerbook or macmini can do a side by side comparison of the sound the macbook makes when loading and ejecting discs... it sounds very noticeably different... I noticed it right away when loading some software on my macbook and thats why i ask. it sounds a little less fluid and very different.
Anyone else notice this or is mine faulty?

I noticed this right away. It also went away quite quickly. The loading noise is/was the longest and loudest slot load I've had, but that changed after a bit of use. I saw a few posts on scratches, so there may be some bezels that are a bit out of alignment. If your machine continues to make a very loud noise while loading that is distinctly different from the mac mini or even the imac (different situation), then you should look at the media to make sure it isn't being scratched.
As far as operation sounds I noticed that I can hear what I'm guessing is the laser head moving. On a mini it seems insulated. This sounds more like the noise you hear w/ a slim dvd burner in a thin external case or w/o a cover. It may just be a function of the installation position and the way the noise resonates through the case. These drives might be much closer to the top of the case or simply louder. Bare optical drives are far from quiet. There are even utilities and firmware modifications by vendors of set-top, external, and slim external which make the drive quieter.
If it works, you can use hardware test (D key on startup w/ install disk 1), and you have no problems or scratches then it's probably nothing. If you get the helicopter noise on almost all your disks then the drive may be out of alignment and could need replacing (if it's only a few then they are probably warped).
Personally, I'm not worried about it. It's just different. I think one cycle of full heat expansion and a few load and unload cycles might have made a difference for me; it's worth a try if it's really irritating.

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