HELP !! My external hard drive is corrupted with all my files !!!!!

So my Seagate Hard drive has been working fine for 1 year, and now when i plugged it in it does not show up on the desktop !
I go into Disk Utility, on the sidebar, instead of the name I set, my disk is now called "disk2s1". I tried to verify it, and it says:
Verifying volume “disk2s1”
Checking file system** /dev/disk2s1
** Phase 1 - Preparing FAT
** Phase 2 - Checking Directories
Unable to read directory (Input/output error)
Error: This disk needs to be repaired. Click Repair Disk.
So i tried to repair it
Verify and Repair volume “disk2s1”
Checking file system** /dev/disk2s1
** Phase 1 - Preparing FAT
** Phase 2 - Checking Directories
Unable to read directory (Input/output error)
Volume repair complete.Updating boot support partitions for the volume as required.
Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.
Please please help me ! I dont want to lose all my movies that I havent even watched. I can buy a brandnew hard drive to copy all my files in but the folder dont even show up on the desktop ! I tried to "mount" it but it doesnt work neither.

Some say "Disk Warrior" can recover corrupted file systems. The cost ($70, I think) and extreme measures it uses makes it a "last ditch" tool instead of a "regular miantenance" tool.

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HELP !! My external hard drive is corrupted with all my files !!!!!

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