"Zip top"??? 1 quart?
 

I know when this whole thing started there was some issue about the type of top the baggie had to have. Being subjected to the baggie carnival for the 1st time this coming weekend(flying out of Buf to Aua) I am wondering if the old fashioned type of ziploc bag, that is that seals together at the top without the little colourful zipper is sufficent(which happens to be the type we have at home)?
Also, the baggies I have happen to be 945 ml(in Canada we use metric;) ). I wont have a problem with the bag being too small will I ?

If you want to stuff it full, then the press-together type of ziploc bag won't stay closed, at least not reliably, and you're better off with the zipper. If you only have a few items, then it should be good enough.
And, 1 qt (32 oz) = 945 ml, since 1 L = 33.8 oz.

They're just trying not to throw free advertising to Zip Lock brand bags (I know, I'm trying not to laugh, too). I use the old-fashioned Wal-Mart branded Zip-Lock equivalent freezer bags...and no issues.