Was in the mood to hear some of my old CD's the other day and when it started playing it was skipping and real draggy, I thought it was the CD and put another CD in and got the same results. I then played the CD's on my computer to make sure the CD's were good and they were. I have not tried the DVD function yet to see if that would be the same. This Samsung combo unit and TV has served me well and the TV is still going strong for 6 years of full time use. So I have 2 questions for my Heartland family, #1- could there just be dust in the unit and is there something to clean it out ?? #2- Has anyone found a exact replacement for the DVD/CD combo unit ?? The Samsung model is HT-Z310 Thank you