To purchase another 8 port system would be expensive. You might want to look to upgrade to the new equiment you can just back that up to your network (and that keeps all your MSG). You can't do that in the early version as easy. But you would have to check out the cost and see if it's worth if you need to have a back-up. you can upgrade 3.00 to 4.00 with just the disk software.
I'm 90% sure of that but someone else will will comfirm that on this MSG broad.

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