Retail disc loading?

[Hykem]

(04-11-2014 11:56 PM)mr.devolver Wrote:  

(04-11-2014 07:14 PM)Hykem Wrote:  

(04-10-2014 08:14 PM)nl255 Wrote:  

(04-07-2014 12:49 AM)Bigpet Wrote:  We did have some discussion regarding this in IRC, currently it's not implemented. But the concencus in IRC was, that we could implement it but we'd probably need the game-specific *.ird files

Just wondering, why would it require such files rather than just doing it however an actual PS3 does it (perhaps requiring the user to copy and paste the required keys from that wiki site if they can't be included in the package)?

Unfortunately, it's not that simple. Retail discs employ an additional encryption layer on each sector (that's why the .ird files would be needed).
You can see the entire file structure (e.g.: PS3_GAME) when you load your disc on a BD-ROM drive, but if you try to open the game's main executable (EBOOT.BIN) with an hex editor you will see that it's all scrambled (the file's data should begin with SCE).
The algorithm is known and it's possible to decrypt each sector, but we're still studying viable ways to process this (we can't simply decrypt the disc in place or copy it's contents to a user's HDD, so we must decrypt and load each sector on the fly).

I can imagine that players wouldn't mind to sacrify some hdd space if it would mean that the emulator does all the dirty job for them automatically.

I guess, but some games are huge! You could easily eat up to 200GB of your HDD just by loading 4 or 5 games.