http://www.sertdatarecovery.com/hard-drive-data-recovery
This can be a interesting video recording I stumbled upon about failed hard drive data recovery which explains just what it appears like in the harddrive. According to the video, but they saved the data, this is a laptop hard drive that was beeping. I just looked at the web page (I supplied a hyperlink into the web page listed below so that you may even see on your own), and perhaps they are reputable. Or trying to do it yourself, you need to see this video, if you ever were thinking about data recovery.