libburn is a library by which preformatted data get onto optical media: CD, DVD, BD (Blu-Ray). On OpenBSD it uses /dev/cdNc. libburn also offers a facility for reading data blocks from its drives without using the normal block device i/o, which has its advantages and disadvantages. It seems appropriate, nevertheless, to do writing and reading via the same channel.
WWW: https://dev.lovelyhq.com/libburnia/web/wikis/Libburn
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