[PATCH 0/1] MR7747: ntdll: Guess optical disc type based on data size.

[Alex Henrie (＠alexhenrie)]

A standard CD-ROM has up to 360,000 sectors that hold 2 KiB of data
each, making the total capcity 703.125 MiB. Anything larger than that is
almost certainly a DVD or a Blu-ray, and Windows does not distinguish
between those two.

There is probably some tiny DVD somewhere in the world that will still
be misdetected, but I'm not sure that issuing SCSI commands to the drive
to try to determine the disc type would be any more reliable.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57790