Going off at a tangent, but related to your query, may I suggest that you only use the DVD-ROM for sound reproduction?
The reason is that it is far more robust than a rewriter which has a lower life and reliability expectancy; proof is easily provided through manufacturers' own specification figures.
If you only use the rewriter for its intended purpose i.e. burning it will ensure you obtain maximum use from it.
It is also far less expensive to replace a CD or DVD-ROM drive than a rewriter.