hello, Mary.
no cables / accessories included, you choose the cables that are correct for whatever is being hooked up. only a single-disc player, multi-disc cd changers slowly going away. nothing compares to the changer for convenience so people record on usb sticks as example, allowing one to create their own mix. sony discontinued their 5-disc cd changer with usb record capability, a unusual feature.
does play cd's, dvd, blu-ray & 4k formats also, and to me, standard dvd is ok - have never seen hd dvd. dvd can hold only so much data compared to blu-ray & 4k. this player upscales dvd discs to near blu-ray quality anyway so no need for hd dvd.
hope this helps. have a good day.