IMS offers ...what they claim as secure networking...this would require two separate networks. One long range from out side the aircraft into the TDL(terminal data loader)....as well as short range to deliver content to end user devices within the cabin.

The TDL(terminal data loader)is a single device....where encrypted/non-encrypted content is received from out side the aircraft and are held.

For any content files needing decrypting.. the TDL handles this process....all fine if the files are to be streamed to end devices and not stored.

As it relates to in cabin delivery of files to end user devices to be stored....the network is more than likely standard issue off the shelf 2.4GHz..as they have mentioned b/g...With this they could offer closed standard broadcast and security configurations.

IMO...for short range in cabin delivery..standard issue would be fine.

However...for stored files

Through this they would have to deliver decrypted content managed by the TDL... to the end user device....once out of the shroud of the above standard security configurations and written to the end device...they`re open files.

Aps/Wencor/now DigEcor offers self contained units(many devices) with hard disk drive security on each device.

They decrypt content files on their own when called for by the end user.

The content is loaded to the drives utilizing 802.11a as mentioned in the 5GHz band....currently by a PDL(portable data loader).

What IMS needs...is the ability to keep the content encrypted from the TDL to the end devices(for stored files) no matter what GHz band the files are delivered on.

The network is not the problem....the file state is.. depending on where it`s final stored destination is.

DigePlayer would compliment the IMS chain for stored premium content files.

doni