Internal I follwed the Backup compatibility list
R. Name Internal External BD-Mirror Direct Boot Ebootfix Firmware 4GB+ Game External Cache Discless Updates DLC Size Notes
Red Dead Redemption Yes No ? ? ? ? Yes Yes Yes Yes ? 7.67GB Copy to Internal - Fix Permissions
I'm not sure what External Cache is though.
On the external drive I had BD-Mirror on and I think I tried the USB patch and the External Files I think that what it's called) right below USB patch.
The game still goes back the the XMB screen.
Like I said I can't get it to fix the permissions on either internal or external drive on both games.
I hit repair permissions and it goes for less then a second and then back to the MultiMan layout.
I haven't had time to try RockBand Country Tracks 2 externally.