Looking for advice/help. I own a samsung dvd/vhs machine. I tried to copy vhs tapes to dvd and learned i needed dvd -r discs to do that. My computer uses +r. I transferred the vhs to dvd and it plays in that unit. when i tried it in another dvd player it will not recognize the disc. I gave it to someone else to use (the dvds are instructional dvds) and they couldnt use it either. It will not play on my computer either. what do i do?? I am assuming i need to transfer it on to dvd +r discs in order to use it.