I'm wondering why the backups kept by time machine are taking up so much space on my Mac's internal hard drive. I have them on an external hard drive, too, and I've done several routine backups there yesterday and today. Strangely though, I deleted some raw video clips (unedited - and only after copying them to two other locations) from my Internal Hard drive. For some reason, though, instead of freeing up disk space, the 80+GB of HD video were somehow turned into "backup" space. (See attached image). Is there any way to clean up the local backups, because I tried doing a backup to my Time Machine Disk, and it didn't seem to help the issue at all. I also noticed a line in the time machine settings that says the following: "Time Machine keeps local backups as space permits" My biggest problem is that I'm getting ready to import close to 150GB of video to work with (stabilize, edit, and export), so I really really need some free space on my hard drive! Can anyone help me?