i just purchased this portable dvd player, and im starting to doubt i should have

i just recieved this dvd player in the mail today. i purchased it off ebay, and it was brand new, so where i got it from was not so much a concern. but i tried to play a dvd and it says no disk.. i tried different dvd's and finally after 3 tries on one dvd it worked. then i went to skip tracks, and then it froze, and now will not read that dvd anymore now either. so i trouble shot it, and it says there could be moisture in the machine and to leave it on for 1-2 hours with no disk, so since its winter, im going to assume that may be the problem, but give me a break, this is redidulous.
im not too thrilled, regardless. i can take my cd player out for a walk in the winter, and it never fails..
im not sure i recommend this product yet..i will add another review in a couple hours after i "dry" my machine. but for some reason, i feel that isnt the problem.i think its just a bad dvd player.
but since i do have a slight bit of hope.. ill wait and see.