Do You Have To Use The Same Brand Of Laminating Pouch As Laminator?

I own a Purple Cows laminator. Do I have to use the Purple Cows brand laminating pouches with this laminator or am I able to switch brands? I’ve noticed that the P.C. laminating pouches are slightly more expensive than, say, Scotch brand and I wouldn’t mind switching as long as it doesn’t harm my laminator.