Time machine error. Won't back up at all.

Question

Hello,
My time machine has always worked really well until recently. Now, whenever it starts to back up and finishes preparing, not a single file will transfer. Then, my Time Machine won't stop trying to back up. Even when I click "Stop Backing Up" or turn Time Machine off, it will still try to back up until I actually eject the Hard Drive. Then I get
"Time Machine
Error Unable to complete backup. An error occurred while copying files to the backup volume."
What is going on?
Thanks,

Answer 1

I'm having same problem. Neat Dashboard app. My log is pasted below. So I see the common error is on "Media1" drive, and the file "The New Interwoven". It's an old file and I can delete it. But before I do that, any recommendations on how to save the file and somehow "repair" it?
Starting standard backup
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
Event store UUIDs don't match for volume: Macintosh HD
Event store UUIDs don't match for volume: Media1
No pre-backup thinning needed: 342.69 GB requested (including padding), 941.92 GB available
Copied 225 files (3 KB) from volume Macintosh HD.
Error: (-36) SrcErr:YES Copying /Volumes/Media1/Capture Scratch/The New Interwoven/Yamaha DVD clip to (null)
Error: (-50) SrcErr:NO Copying /Volumes/Media1/Capture Scratch/The New Interwoven/Yamaha DVD clip to /Volumes/Time Machine Backups/Backups.backupdb/Edit2/2009-01-26-163217.inProgress/6851DD8C-4C97-4FDF- A11B-3CE573F09294/Media1/Capture Scratch/The New Interwoven
Stopping backup.
Error: (-8062) SrcErr:NO Copying /Volumes/Media1/Capture Scratch/The New Interwoven/Yamaha DVD clip to /Volumes/Time Machine Backups/Backups.backupdb/Edit2/2009-01-26-163217.inProgress/6851DD8C-4C97-4FDF- A11B-3CE573F09294/Media1/Capture Scratch/The New Interwoven
Copied 305 files (7.5 GB) from volume Media1.
Copy stage failed with error:11
Backup failed with error: 11