@chrissa1
I rushed that answer and somehow ignored that you'd specifically highlighted that the laptop could read the disc, which it would fail to do, with an unfinalised disc.
To fender's reply I'd add that Blu-Ray machines, with backwards compatability with DVD would be what you will find on the store shelves. A purely DVD machine will be end-of-stock, possibly cheap because they're having trouble shifting the last of them but possibly a false economy because, by the time you get around to replacing that, Blu-Ray machines will be old hat.