dvd recording help please for Samsung

I have a Samsung DVD-VR330 and it's becoming temporamental.  I've been using Pleomax (by Samsung) DVD-RW discs to record from TV.  They have been fine - most times - but over the last couple of months it is refusing to load some of them, wanting to re-initialise them and then when I tape on them it wants to initialise again, thus I lose the film.  Can anyone help solve my problem?  I've even cleaned the disc drive to be sure it's not that.