How to determine whether Blu-ray disc is HTL or LTH


With a blank Blu-ray disc inserted into a Blu-ray burner drive, how can I determine whether the disc is HTL or LTH?

Best Answer

  • Here's the best way I've found:

    1. Determine the manufacturer code and media type of the media. On Linux, I used cdrecorddev=XXX -atip | grep -i 'manufacturer\|media type', where XXX is the code for the Blu-ray burner as listed by cdrecord -scanbus.

    2. Look up the manufacturer and media type codes at . The table on that site identifies "recording type" (i.e. HTL or LTH) and also write speed from these codes.

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