Generally speaking, I have not had problems in the past with most of the tapes from Pioneer. I did get one batch a couple of years ago, which I think was cut for the youth frames if I remember correctly, that separated from the frame pretty quickly. I noticed at the time that that tape seemed to be thinner than what I had been using. I also notice most recently that the tape I am getting from Pioneer now is a lot thinner than it used to be. I hope they corrected the adhesive problem in the new stuff...haven't made enough calls or used it enough to find out yet....