Ahh I see. Didn't realize RecordEx was hardware and not software lol.
In that case i'm not too sure. RecordEx hardware might need specific firmware's for their drives, so simply putting in another drive might not work.
What you could try though is - if you have a spare DVD-rW (they are found everywhere, and are dirt cheap) you can try putting it in and seeing if it works. Although the hardware might be slightly different, so it may or may not work.