I recently bought a 1 TB Samsung HD to copy movies from one Dish 722k receiver with DVR, to new replacement Dish 722k receiver. It worked fine (but took over 8 hrs for transfer). Now I want to use the same Samsung drive to use as a backup for my Linux desktop.

If I copy the movies from the Samsung drive over to the new DVR, do I reformat it to EXT4 to use it as a backup, or is there a different solution?
The Dish receiver is a 722k model.


Ubuntu 12.04
Quad core AMD Phenom 9650
4 GB ram, 650 GB hdd