Upgrading Sky HD box

[Toby]

Hi,

The inlaws are wanting to upgrade the hard drive in their Sky HD box to provide more space but they're not the most technically minded.

Yesterday they were telling me a few things they'd "discovered", including...

1. They've been told that the Sky HD box won't recognise a disk larger than 500GB

2. They've found a seller on ebay who claims to provide 1TB discs that will work as they're "formatted" by some other means.

3. They've seen someone selling 500GB discs with installation instructions for £100!

Now firstly, does anyone know if this 500GB limit is true? If so, then is this vendor of 1TB disks on the level?

Also, the vendor selling the 500GB discs is taking them for a ride IMO as they could surely get the disk for half that and find some instructions online themselves (or rather I could).

I'm basically after any info on this. As I don't have Sky I'm not up on such things but, from what I've heard, I was under the impression that you could slap any disk in there and it would just work, with the Sky box initialising it automatically, but that getting a 5400rpm drive was advisable as 7200rpm drives could produce too much noise and/or heat. Is any of this true?

If anyone here has done anything similar I'd love to hear your experiences/advice