Re: Probably a dumb question, but how do I solve this?
This is nothing more than a crazy guess, but from your lsusb output, it seems that you have a webcam and bluetooth attached to your system. Do you have an android phone/tablet or iPod/iPhone with approximately 64GB storage that is almost full? If so, then it is possible that it is being sensed, and now, every time this device is near your computer, the bluetooth connection automatically gets established and the device shows up as a storage unit. However, you can't browse contents because it isn't syncing properly. Like I said, nothing more than a crazy guess. Another possibility is an SD card that you've left in some card reader.
BTW, your forum etiquette is impeccable as far as I'm concerned. You are a pleasure to help and a model to those seeking such help.
Now, will have to do the grilling thing for all the Moms milling about. Will be off line till they're all happy, stuffed and gone. Happy Mothers' Day to all Moms out there!
Newb: How far must I jump to clear the ledge halfway down?
Guru: It's bad to jump off cliffs. Let's look at better options.
Newb: Stop harping about "best practices" and just tell me.