Ultrapsyber
Bluelighter
I'm not sure. I don't take the those supplements because I already eat plenty of fish so I don't know much about them. I've just heard from people that man of the supplements give you nasty burps but some pass through the digestive system to where you don't get the burps. When you go ask someone who works there about it. If you have a whole foods type store in your area, someone there will know for sure.
Apparently if you keep your fish oil capsules in the freezer it helps eliminate the fishy tasting burp you might get from some of the fish oil that's out there...