The transcript says:
Where have you been? l've been looking all over town for you.
- Why? - Three Cyberbiotics installations have reported robberies by some kind of creatures, and l saw you and another gargoyle flying away from the plane wreck.
- What's this all about, Goliath? - The disks were stolen from Xanatos.
We returned them to him.
Remember this? l traced that emblem.
lt's the logo of a robotics firm that's owned by - are you ready? - Xanatos Enterprises.
Are you saying that Xanatos is responsible for the attack in the park? That's exactly what l'm saying.
He probably planted that bug on you himself.
But those were the same men who stole the disks from him.
Goliath, nothing was stolen.
l checked.
Those disks were Cyberbiotics' property.
He must have staged the theft to trick you into stealing the disks.
He used you.
He's been using you from the beginning.
Listen, Goliath.
--
l'm afraid the gargoyles have outlived their usefulness.
l can't count on their loyalty.
But now, with the data on those disks, l can bring their replacements on line.
Read more:
https://www.springfieldspringfield....pts.php?tv-show=gargoyles-1994&episode=s01e05
Looking at the transcript, it does seem a bit confusing. Eliza says that the disks belong to Cyberbiotics, and she says the logo (and therefore the 'thieves') belongs to a cybernetics company owned by Xanatos, but she doesn't say that company is Cyberbiotics. So it could still be that Xanatos faked the theft of fake disks to get the Gargoyles to steal the real disks, but then she also says 'Nothing was stolen' because 'those disks are cyberbiotics' property'. That's at best an awkward phrasing which kind of implies Xanatos stole them and Cyberbiotics stole them back, which doesn't fit the rest. But it could also be taken to mean that Eliza checked up specifically on the disks that the Gargoyles stole, and not the original ones - in which case everything does fit. The Gargoyles stole Cyberbiotics' disks which had never been anywhere else but in Cyberbiotics' labs after Xanatos tricked them into thinking Cyberbiotics had stolen the disks from him.
Yeah, reading it a third time that definitely has to be what they were going for - they just got a little turned around in the phrasing. Nothing else makes sense once you take into account what Xanatos says about finally being able to finish his plan now that he has the data on the disks