I'd heard of the TLER tool. From what I could gather it's mostly needed in RAID setups. As it could be useful, here's a new iso that adds WDTLER and a basic list of commands for both programs. The hdaccess program that comes with wdtler doesn't seem to run on my MacBook, but I'm not sure now if it's actually needed.

I also added a reboot option for those of us who can't type CTRL-ALT-DEL.