With the discussion about 7.1 I am wondering if the READ_BIG issue has been resolved. I cannot boot the 7.0 install disc so am still running 6.3. For the record I have an Asus P5KPL-CM motherboard and an LG SATA DVD drive that is recognized as a GH20NS10. I have tried the media on a machine with an IDE CD drive and it works fine.