DVD's won't play in certain players/comps.

I have burned 6 dvd's 2 of which i have kept and 4 that i have given to other people (not a burned movie) i tried all of the discs before i gave them to the other people and they worked fine but when they try to play them they will skip and not work right. Then i tried them again on my computer and they work fine again. Any help be greatly appreciated.

They've tried them on 3 different computers and they all have the same issue. Could it possibly be the dvd is not compatible with certain drives?

I've had this too. But as mi1ez says it's drive dependant. I've got a few Pc's and it just boils down to some burners just work better.
I'd like to say it's make dependant but most my drives are LG and i still get the problem if i burn with a certain burner.
You could try burning the discs slower, i thought about seeing if that works but never got round to it.
Found the drive that works 100% and burn everything using that drive

You're possibly burning too fast for the media and as a result the data can be a bit patchy - less sensitive drives will choke.

Best thing to do is burn your discs at the lowest possible speed and test them on the troubleshome drives/players and see if that helps.

If yes, every time you burn take the speed up a level until you max out. If no, try changing the media to a different brand.

Also be aware of + and - R - all drives can read -R but only +R drives can read +R.