I changed hard drives for my Time Machine backup. I can't delete the backups on the older hard drive. I get an error code after I use "Move to Trash": -8072. It spends 45min deleting some 1,000,000+ files to end in error -8072. A google search didn't turn up the reason for the error.
Also, for some reason creating a backup on this hard drive locked all my other folders and subfolders. I can unlock them one at a time but this will take a while. Is there a faster way?