Final Cut Pro X, Motion 5, Compressor 4: About the "Failed: Quicktime could not access a file. Offset too big" alert
When sharing to a QuickTime movie, Apple Devices, HTTP live streaming, or AAC audio, the following alert may appear "Failed: Quicktime could not access a file. Offset too big."
This alert message indicates that the drive you are exporting to is getting full. To address this, clear up some space on your hard drive or share to a different drive with available space.