MyPassport EXT HDD Crashed w CRC Errors

MyPassport 1Tb drive crashed and wouldn't be recognized by Windows last night.  It came up with CRC errors and I couldn't access the drive at all.  I ran chkdsk /f against the drive multiple times and it finally was bale to be set a Drive letter and I could begin to browse the folders.  It is very very slow and if I browse to fast it goes to not responding and more CRC errors.  All folders/files have a security lock icon next to them so I went into the properties and gave my profile FULL CONTROL which took a very long time as well.

 I am trying to get everything off the drive which is about 600GB of data.  I tried using robocopy but when I build the script it only recognizes 1 folder of about 1GB size and nothing else.  I tried manually copying a big "PICTURES" folder of about 60GB and it starts but hags at "1 hour left" and stayed there all night.  

Any ideas of anything else to do?  PLEASE help I have many family photos on this drive ( when will I learn to backup right)