MySQL Performance: Single table or multiple tables

Question

I have a 8 sets of data of about 30,000 rows for each set, the data is the same structure just for different languages.

The front end of the site will get relatively

Answer 1

Another drawback to the "one table per language" design is that you have to change your schema every time you add one.

A language column means you just have to add data, which is not intrusive. The latter is the way to go.