I have a bootable USB flash drive (formatted FAT32) which I use to boot my system image software when I want to do a system restore.
On that same drive, I store the backup images for my software and since the drive is FAT32, the maximum file size is 4GB; therefore, I make sure that I configure my system image software to create backup files of 4GB max. When I did the last system image, the total backup size was 18.2GB, split into four 4GB files plus one 2GB file; those files are stored on an NTFS-formatted USB drive.
When I then attempt to copy all those 5 files onto my bootable USB flash drive, one of the 4GB files fail with the error "An error occurred copying '': There is not enough space on the disk. (112)"; however, Windows File Explorer is able to copy all the files to the USB flash drives no problem and that's what I had to end up using. Here are the Properties information (i.e., right-click and select Properties) about the four 3.99GB files:
- Size: 3.99 GB (4,294,916,801 bytes); Size on disk: 3.99 GB (4,294,918,144 bytes)
- Size: 3.99 GB (4,294,925,841 bytes); Size on disk: 3.99 GB (4,294,926,336 bytes)
- Size: 3.99 GB (4,294,955,665 bytes); Size on disk: 3.99 GB (4,294,959,104 bytes)
4) Size: 3.99 GB (4,294,965,217 bytes); Size on disk: 4.00 GB (4,294,967,296 bytes)
It is file #4 that DOpus fails to copy, but Windows File Explorer has no problems copying it.
I am using DOpus 10.5.4.0 (5080) x64 on Windows 8 Pro.