Not sure if this is hardware or software. Win7 OS with LG GH24NSBO drive (almost brand new). Trying to burn a file onto an old Maxwell CD-R. Keep getting message telling me to insert a writable disc. This happens with ImgBurn and Win7 Disc Burn. Did some Googling and discovered this is a common problem sometimes caused by a corrupt registry and sometimes Win7 just does not recognize certain brand CD-R's. Maxwell seems to be one that will not write. I can read files on Maxwell CD-R's which I burned years ago when I still had XP. Should I try a different brand CD-R? Any other tips? Thanks.