Not sure if its the same thing as mine, I have a DVD and DVD-RW drive, the DVD is finee, but the DVD-RW will not recognise any CD's whatsoever and keeps giving me the message as yours does IE - Blank disc - I checked this out on several forums and was told there are sepparate CD and DVD lasers in the drive and the CD one was probably faulty - maybe you could have a similar problem? Does it show anything if you go into Windows explorer and check the Drive contents, mine will for a DVD but not for a CD - if it does show up under WIndows explorer then theres a possibility the disc could be the culprit.
Good luck