Huh? Which version of Cactus data shield are you talking about? I came across a recent cd from BMG (Loveparade 2001 compilation) which is protected with Cactus Data Shield 100 (there’s also 200 according to Midbar website). There’s a warning on the cd which says: this cd can’t be played on pc. This technique uses 3 sessions, one with errors, a fake toc, large pre-gaps on the music session. All this combined makes sure your cdrom does not know what to do with the cd… But with CloneCD (check: subchannels in audio-data) it can be copied and the protection is partly removed so the copy can also be played on the pc… (And it sounds good, that is: as good as it is possible on a pc ;))With the technical details mentioned above, apperently you are not talking about Cactus Data Shield 100.