MSI MS-6340 Ver: 5 mainboard

Trying to dump a ghost image which is about 1.3GB in size onto a Hard-Disk via a bootbale 4GB Apacer flash drive. Booting from USS ZIP in BIOS works fine, run a batch file I made with ghost switches also runs fine, but it's cloning at 40-45MB/minute...using Ghost 7.5