Hi Creekers, I have a customer who wants me to engrave about 250 tiles , various sizes ,2"x4", 2"x8" and 4"x4" to go on a wall for thier school. So the question is that the tiles are different colors, and I was thinking cermark but have never used it for tiles, should I have any concerns about the contrast or the quality of the tiles, I have told her no dark tiles, looks like they will be a teal or mustard color. Does the quality of the tile matter. Also is it possible to engrave a decent photo direct from Corel X3, I dont normally do any kind of "arts" work, so I was hoping not to have to buy photoshop or Photograv. Any thoughts.