Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WORKS BEST WITH ELECTRICAL CORD, NOT BATTERIES!

I purchased this cd printer three years ago and used it with batteries until this year. It worked okay with batteries but I found the printing wasn't smooth or consistant. This year I purchased the electrical cord and found that it gives the printer more "gas" and the printing is GREAT! I also hooked it up to my computer which makes it easier to use and gives me more fonts. I give it a four star rating because the ink cassettes waste a lot of ink and are costly. But all in all, this is a good product. By the way, I use TDK printable CD's from COSTCO and they print nicely (100@$22.99). However, this printer has done a good job printing on most discs I've tried.