I have iHAS124b and it is upgraded with burner max. The problem is that when I put dvd in the drive (Verbatim ΜΚΜ-003-00)it says "Free Space: 8.547.991.552 bytes"!!! When I press the icon to burn the DVD asks me to Overburn or Truncate. My operating system is Windows 7 - 64bit. Any ideas?