I'm trying to make sure I'm up to date with my Boot CD. First I created a CD from the iso folder using bootcd_x64. When I checked it with the Check Recovery Disk utility it said it was not a bootable disk. Then I created one with the bootcd image and that one checked okay. I then upgraded the version to 10.1.21.334 and downloaded the BMB Utility and created a boot disk. The Check Recovery Disk utility said that one was not bootable. I just want to make sure that I have a current bootable disk should I need to do a recovery. My primary recovery images are on an external drive connected by a USB 3.0 connection.