hi guys,
i recently wrote a mail to the guys from infinitymod.com (cause i own a matrix infinity), and asked them if it will be possible to play DVD9 backups with their upcoming 1.4 firmware. and here's what they replied:

Hi Stefano,

yes, we are also preparing the firmware to allow the DVD-DL to boot
on the PS2.

We are before completing the new protection layer for the firmware we
release for the infinity, to avoid that more people can use our firmware
with their lower quality products.

As soon as we complete this work we will proceed to implement the DVD-DL
on the Infinity.


Best Regards,
The Matrix Team
Luke.

so this may be interesting for those of you who have a matrix infinity in their PS2 (like me).

wish u the best