Recently when I was burning a CD on my external CD-RW my computer froze right at the end. It ejected the dis and it works just fine, but my CD-RW will no longer burn CDs. It reads them, but eveytime I try to burn it says. "Error: Medium" then i hit ok and it says disc failed to be written, the disc ends up untouched and still burnable. Using OS 9.1 with TiToast.