I worked for about 20 years building custom decks. I have used pressure treated, cedar, redwood, ipe etc. I have never used the hidden fasteners before but I do know that ipe was the most dense decking I ever used. I use a 32oz hammer; this hammer could be dropped from as high as I could hold it...
Thanks for your response. I went out to buy a DVD disc changer that can handle burned DVD's i.e.slide shows and home movies as well as act as a CD player. The sony I picked up played the burned DVDs but did not play randomly between discs.