This was the first Pioneer item I have ever owned, and it will be the last. My understanding was that their products were good, but this lasted just a teeny bit over twelve months, being used in a domestic setting - then went wrong. Fortunately I had insured it. The repairers had it for months before it was written off because the spares required were no longer available. Apparently what happened to mine is a common fault (and spares cannot be obtained)? So, for me, Pioneer is NOT a make I will ever buy again.
I am now playing a Teac DVD player, which plays five not six discs, but which has a much simpler mechanism which is less likely to go wrong.