Playboy Mansion & Spyro 5 Backups - Help!

[ADROiT]

Hi all.
I have a v50000 model PS2 with a Messiah Pro v2 MOD chip.
I've made backups of "Playboy - The Mansion" and "Spyro - A Hero's Tale" to Verbatim DVD-R's with DVD Decrypter 3.5.2.0.
With both backups, when I put them in I get the "PlayStation 2" logo come up, it fades out...... The end. The screen just stays black and nothing else happenes.
All my other backups are working fine so I don't think there's anything wrote with the MOD chip or laser.
Has anti MOD protection started coming out for PS2 now? If so, where can I get patches? Have found nothing in consolegamingworld.com or these forums.