Originally Posted by mattbodin
Is the blobs folder a temp folder?
If you have the default backup type set to dedupe it is an essential part of the backup. Its where it store information and prices of the backup. See dedupe style backups check to see what has changed and only backs up what's changed. It uses the prices in the blobs folder to check all that. I recommend changing to tar format backups as they are simpler and like the old style!