A quick clarification on BBC iPlayer pre-booking

Two days ago I included the snippet that BBC Trust approved the use of "pre-booking" with the iPlayer (online version, not other platforms).

I thought that meant some shows would be available up to 7 days before linear broadcast (and thought "pre-booking" was an odd name).

From the BBC management’s submission to the Trust, as well as the Trust’s explanatory note on their decision that I read last night:

• Pre-booking does not allow programs to be viewed before their linear broadcast premiere (the DRM in place is to protect this*).
• Pre-booking does allow for shows to be downloaded to a users’ computers before their broadcast. This is so those who choose to download programs - functionality that currently exists with the iPlayer ; distinct from the more common streaming option - can basically get the program downloaded over night etc, so they can view it straight away without waiting f or it to download after it becomes available to watch.
• It will also bring an auto-scheduling element to program downloads - eg jsut before a series starts on braodcast, you’ll be able to say "download each episode in the whole series in quiet times when they’re available, so they’re ready for me to watch as soon as they’re broadcast"

Once again, this will no impact on those who currently use and choose to continue to use the streaming method to access iPlayer content.

(*Anyone have any info around how succesful/secure the DRM systems around the current iPlayer downloads are? )