HD Failing on Sony HAP-Z1ES HDD Player, Need help from Owners of Sony Player

The hard drive in my Sony HAPZ1ES HDD player seems to be failing.  After playing for a while, the player starts to skip and go back to the beginning of the song.  Once this happens, every file on the player will do it.  If I shut off for 5 minutes, it will work fine again for a while.  I have concluded that the 1TB Hard drive is failing.

I want to replace the drive with either a 1 or 2 TB SSD.  My question is how do I get the Linux software which runs the player onto the new Hard drive?  I know a few members have done just that.  I am hoping they can advise me.  I won't have a problem copying the hd contents, just worrying about getting the operating software onto the new drive.  When I look into the HD on the player, I am not seeing the software.