I can't copy my DCP onto my USB stick. It keeps saying the file is too large for the destination file system even though it has lots of free space!
This can happen because your USB stick is formatted using FAT32. This does not allow single files larger than 4GB, even if there is space on the drive.
To fix it, re-format your USB stick using NTFS as discussed here. Note that this will wipe any files that are currently on the stick.