I purchase this cd printer three year ago and use it with battery until this year . it work okay with battery but I find the printing be not smooth or consistant . this year I purchase the electrical cord and find that it give the printer more `` gas '' and the printing be great ! I also hook it up to my computer which make it easier to use and give I more font . I give it a four star rating because the ink cassette waste a lot of ink and be costly . but all in all , this be a good product . by the way , I use TDK printable CD 's from COSTCO and they print nicely -lrb- 100@$22.99 -rrb- . however , this printer have do a good job printing on most disc I have try .