DVDRW

Hi there i have started having some trouble with my DVD RW, it seems that it
thinks every DVD that is inserted into it is a blank disc that needs
preparing, not so with any CD. I have3 checked the driver and it seems to be
up to date , and can find anything else that would be causing the problem,
any help would be great as i use my PC as home entertainment and no DVD means
no films. should i just replace the DVD drive
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grapes