I'm building a new HTPC and I'm looking for a blu-ray/dvd/cd burner that runs quietly even at high speed. There seem to be two types of drives, ones that have an active dynamic balancing mechanism built into the spindle. And ones that have just the motor. The ones with ADB are near whisper silent, and very quiet even at 48x speed. No vibration, no humming or buzzing. As for the others, they sound like a 747 taking off or a toilet that doesn't stop flushing. Asus calls their anti-vibration and noise suppression tech AVRS. Apparently they don't make a blu-ray burner that has this feature, or if they do, it's not advertised as having it. LiteOn seems to have something called ABS. But the drive doesn't seem available anywhere. My old Sony drive has it. Don't know what they call it. LG says their drive is silent during playback, nearly all optical drives are. Until you speed them up for ripping. Either they didn't understand the question or their drives don't have this feature. Essentially it's a set of ball bearings that run in a groove in the spindle and naturally cancel out the buzzing and pounding resonances that make a high speed optical drive so noisy. Drives with this are near silent. So my question to you all is what new modern-day blu-ray writers have this feature?