'Heavy Duty' or 'Industrial Standard' CD+D Writers

My company requires a source of CD + DVD writers that are manufactured to a standard higher than CE (Consumer Electronics)- We are currently using Philips 52x writers but as they a designed for home and office use they are only expected to experience 20%usage/80%idle during lifetime. Our application is killing them in a couple of months. I have been told that these 'heavy duty' machines exist for medical and scientific applications but after talking to Philips and TEAC have had no luck finding any. Can any one help ???

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