if its bigger than 8tb it may not work with my PS4 and some brands may not
is the manufatcturing process diffrent for externals ?
anyone got a listting of all the 8tb drives on the market and there prices ?
with the exchange rates - AUD is just a bit stronger than the CAD it might be cost prohibative
otherwise if i can get one of those cheap Daul NAs bays with WD reds that might be the way to go .....
Is there a reason you need 8TB or can you do as well with a 6TB? If you can use a 6TB drive, then your selection is better and will be less expensive. Since you are going to be using it for games, you will probably need a 7200 rpm drive, either a 6TB WD Black or an HGST 6TB or 8TB Helium drive (you do not want to use a NAS drive, such as the WD Reds).
I realize finances may be a bit tight but, the fact is, you get what you pay for. You pay the cheapest price, you will get the cheapest quality. Also, keep in mind that any drive, no matter how good it is, is subject to sudden irrecoverable failure at any time (I even had a WD Black, one of the most reliable drives made, arrive DOA) so you need to budget for at least one more drive (two would be much better) to backup what you put on the drive you are going to connect to your PS4.
Some external drives are made differently than internal type drives. Besides usually being lower quality and the aforementioned encryption issue, some do not have a SATA interface on the HDD and will connect directly to USB. Also, most, if not all, external drives are only 5400 rpm and, for gaming, you would be better off with a 7200 rpm drive.