WD30EFRX Strange beeping sound, disk not recognized

WD Internal Drives Desktop & Mobile Drives
3

I listed to the video you posted on dropbox, it sounds like you hard drive is motor stuck, do you hear it spinning? I have similar drive  WD30EFRX-68AX9N0 it looks like you will need to have some technicians look at it or just get a replacement from WD, they are very good with replacements, the best manufacture in the market