Best HD for streaming to TV - external vs. portable

If it's one Apple TV, pretty much anything will be fast enough. If you are streaming multiple video sources to multiple Apple TVs simultaneously then you might need to look at performance issues.

arbogast777 said:

I just added the new AirPort Express to my line-up, and now want to add a HD to it so I can stream my iTunes movies to my Apple TV offline.

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Irrespective of HD choice, the AirPort Extreme (right? Express is only good for printer sharing via USB) will not stream anything to Apple TV, unless you let iTunes read the file from AirPort and stream it to Apple TV. Which means, you still need a computer between Apple TV and the AirPort Extreme.
The other option would be to JB your Apple TV and make it connect to network file shares (such as AirPort's).
Or did I misinterpret your meaning of "offline"??

arbogast777 said:

Meant to say Extreme, yes. Sorry

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What did you mean by "offline streaming"?

arbogast777 said:

I just added the new AirPort Extreme to my line-up, and now want to add a HD to it so I can stream my iTunes movies to my Apple TV offline.

Click to expand...

You can store your iTunes library there, but you need a mac running iTunes to stream to the AppleTV, the AppleTV streams from the Mac.

Folks that do this a lot use a headless mac mini tucked away as the iTunes server. Or they connect the external drive directly to the mac running iTunes.

There are some NAS$$ products that can act as a iTunes server for home movies or unprotected music but in varying degrees of success. Last I checked the AppleTV doesn't seem to like them.