here is a tool that should decrypt recorded files.
This is really old code and I'm not sure if it works with current models.
But I'm optimistic that Samsung was too lazy to change this.
It worked for all models before Tizen.
On Linux you can use QtCreator to compile it. May be on Windows it works as well (I ported it from Win to Linux).
Can somebody try it and give a feedback?
About a couple of different "solutions" for E/F, as much for H and at least one for J/K Tizen's. Mandatory root for all of them.
No need to say 4 years can't be summarized in few words...
[PC] SamyGO PVRDecoder for E/F/H series
[App] PVR encryption key dumper E/F
[App] SamyGO NoDRM E/F (MST only)
[APP] ffmpeg w/ srf decryption and hw aes [E/F/(H)/J/K]
Basically from E, decryption requires associated .key file and a way to internally catch that key (hence root/code injection necessary).
UnDRM'd recording is also possible in some case (->no key/decryption needed, E/F/H on T-MST fw).