How do I move a 150GB iPhoto library out of a DMG on my external drive in less than a day?

Presently I have the 150 GB iPhoto Library in a DMG on External Drive (ED). I want to now move it out of the dmg into a folder from where it will be used.

It took about 2 hours to move DMG from Mac to ED via Ethernet cable.

I have iPhoto 09, MAC OS 10.6.8, 3TB WD My Cloud (ED).

Tried DMG as the copy kept failing 2-3 hours into it.

As I attempt to move the folder from DMG to another folder on the ED it is telling me 60+ hours.

When I created the DMG it estimated 2 hours and comleted in less.

Is there some specific manner or steps that need to be taken to quickly move this iPhoto library from DMG?

The DMG contains a single folder which shows the Iphoto Library