Yes, they still make it, and it's more abrasive than SMR. Great stuff, too, especially if you have a PC or other machine. You really need to work the stuff in so the abrasives can break down, then use QD to remove the rest. It can be a little stubborn to remove. It's a lot stronger and better than SMR because it has more abrasives, but you should follow with SMR and it will look awesome.
I found a big bottle at a car repainting store. It was $24 for a very big bottle (one quart?), so it's not expensive.