Why does drive image show different start partition free size?

I made an image of /dev/sdc. The free space before the first partition isn't reporting the same byte sizes, but why? The start position is reported as 1024B on the drive and 16384B on the image? # parted /dev/sdc u b p free Model: ASMT 2105 (scsi) Disk /dev/sdc: 500107862016B Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 1024B 1048575B 1047552B Free Space 1 1048576B 500107862015B 500106813440B primary btrfs # parted d1/drive1.sdc.img u b p free Model: (file) Disk /mnt/4/d1/drive1.sdc.img: 500107862016B Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size Type File system Flags 16384B 1048575B 1032192B Free Space 1 1048576B 500107862015B 500106813440B primary btrfs Edit: I created the image like so # pv /dev/sdc > d1/drive1.sdc.img Edit2: After running md5sum on both, they show same hash # dd if=/dev/sdc | md5sum; pv d1/drive1.sdc.img | md5sum