Comment 18 for bug 397192

Yes, I'm seeing a similar issue on folders which have video files.
Terminal will list the files but Nautilus will wait continuously trying to update the folder.

If I switch Nautilus>Edit>Preferences>Preview to Never Preview, all files will display.

I also thought it was mainly folders where files had been copied into them, but I've just had it replicate on one of the main offending folders when no files were moved or copied, I was just changing views between various tabs on the different drives.

Changing the Minimum file preview size has no effect.
Size of file where problem is occurring for me is at least 150MB, much smaller than reported above.
In my case it's happening on two FAT32 external drives.

I've tried replicating with smaller (<30mb) PDFs and MP3 files of approx. 100mb but not finding it, though I've only made brief checks.