oh, yes, corn tortillas are definitely hard to come by here in Italy! I once brought two huge packages over from the US and they ended up in the freezer for 2 yrs and then in the trash
I just couldn't gather the energy to get all the ingredients together and make the whole mexican meal... make your own refried beans (with borlotti), harvest your own cilantro (which I keep forgetting to water and it keeps dying!), find limes at local grocery store (not everyone has them), use greek yogurt in place of sour cream, and usually make your own salsa (sometimes you can find a decent one at Lidl, but the salsas in other stores have always been disappointing - too sweet).
Anyway, the whole ordeal gets to be a headache, and i'm the only one in the family who really appreciates all my efforts...
so the corn tortillas had a bad ending... but if you really love them, you might bring a package with you!
tortilla chips, on the other hand, are available here.
and georgette, i have to agree, all the mexican (an chinese, for that matter) restaurants in my area are horrendous!