Hope this isn't against the rules but this from the nfo accompanying the backup of a XGD3 release is interesting:
XGD3 BACKUPS OVERVIEW
To end the confusion once and for all, *yes*, original XGD3 discs
have a higher linear/track density and therefore a higher physical
capacity than XGD2 and regular DVD+R DL media. As a result, XGD3 ISO
backups are larger as well.
For XGD3 backup support, c4eva has introduced in LT+ v2.0 the LT-MAX
feature, which allows for XGD3 backups to use the maximum possible
layerbreak for regular DVD+R DL media, and therefore all of the
available space (8,547,991,552 bytes) of a regular DVD+R DL disc.
Since there is still not enough space on a regular DVD+R DL disc to
hold the entire XGD3 game partition, not to mention the Layer 1
Video partition, this is not at all recommended as being "safe" for
XGD3 backups will still boot and play fine on LT+ v2.0 as long as the
last approximately 1.7% of the game partition does not contain any of
the actual game assets, which it usually won't because the end of the
game partition is near the inner edge of the disc, and developers
will try to keep their game data near the outer edge (middle of the
game partition) to maximize read performance.
Another necessary condition to booting and playing XGD3 backups on
regular DVD+R DL media is that the kernel or game code itself must
not perform any CIV (Content Integrity Verification) checks on any
part of this last approximately 1.7% of the game partition (or at
least it must not take any action after CIV failures). Even if there
are no actual game assets in this area, there is still pseudo-random
padding data which can be checked through CIV, and such checks can
even be added later to the game code through title updates, or to the
kernel through system updates.
Just like XGD2, XGD3 backups still require the correct dashboard
version-specific AP2.5 replay data. As they've done previously, MS
has the ability to change the DAE.bin by way of a system update,
meaning you may need to re-patch/re-burn at some point. The abgx360
application and database will be updated accordingly to support XGD3.
So to sum up MS can easily check is a disc is an original by checking the last 1.7% of the game disc. I would guess they will start very shortly and easily be able to stop these from booting.
Arakon - please delete this post if this shouldn't be on the forum.