-Regarding whether you need to purchase anything in addition to the printer, and the ink:
No, except of course, you will want to make sure you are buying blank media which can be printed on with ink jet. (You will sometimes come across some that says "DVD thermal printable media," and those will NOT work. They are intended for more expensive thermal printers.) I have bought Taiyo Yuden inkjet printable DVD-Rs, which suit my needs. You may also note that some blank DVDs that are printable only let you print to a certain point and then they leave the inner hub "blank." Others let you print much closer to that middle hole, and they are usually advertised as "hub printable inkjet DVDs." If you examine several different commerical DVDs, you will also notice a similar situation -- some of them leave the middle part (the inner hub) blank, while you will find others that are printed with graphics in this area.
Because I prefer the kind which are printable on that inner hub area, this means I sometimes have to create an image for that inner hub, if this part was blank on the original DVD that I own. I do this in Photoshop. I do not mind this, but others might object to the extra time it requires. In fact, some of the best looking ones I have done were completely created by me, for DVDs that were simply a "blank shiny silver" original, except for the tiny title stamped close to that inner hub. On those DVDs, I prefer to find some graphics from the cover art, or insert, or even from poster art off of the web, and design my own. As I said, most might find this a pain in the rear, or not worth it.
If you want to see an example of one I just did, follow this link:
Click here to see a printed DVD. Then, use your "BACK" button to return.
I just quickie scanned this one, and I note it appears a bit "blurry." The actual DVD does not have that "soft" quality. Note that I added the "DISC 1," since I chose to split this one out to two DVDs. The other is identical, except it obviously says "Disc 2."
-The most expensive part of the equation is actually the ink. This printer takes six separate cartridges, and in case you had not noticed, that is how printer manufacturers make their money. They will practically give away the printer, but the ink is their big money profit maker. There are methods to save some of that outrageous expense -- you could experiment with trying one of the less expensive third part cartridges, or the "refurbished" cartridges. Or, you could experiment with re-filling the cartridges yourself. You have to be careful, and patient, and Epson will try to scare you off of this as much as they can.
In the United States (at least) a single one-time replacement of all six cartridges currently costs more than the cost of the printer. This printer can be purchased for 70.00 American dollars right now, and all six cartridges cost 90.00 American dollars. Ouch.
As to how long they will last, that depends. Will you also be printing other stuff on this printer? And, will you insist (as I do) on setting the print quality for the very highest quality of print (which naturally tends to use more ink)?
I am on my first set of cartridges. I have printed 22 discs. I just checked the levels of my cartridges, and it appears that they are all almost exactly 3/4 of the way full, according to the ink monitoring utility that comes with the printer. IF I go by that, I could get so lucky as to get close to 88 discs (I have not printed anything else on this printer).
BUT, that will probably not be the case. My experience with color inkjet printers shows that you usually start to see a noticable deterioration in the print quality long before they reach the very "bottom" of the actual cartridge. I guess i will be happy if I can get 60 or 65 discs, before I have to install a new set of all six cartridges.
Anyone else have numbers to share?