BIOSDISK_FLAG_CDROM
geometry->flags = BIOSDISK_FLAG_LBA_EXTENSION | BIOSDISK_FLAG_CDROM;
geometry->flags = BIOSDISK_FLAG_LBA_EXTENSION | BIOSDISK_FLAG_CDROM;
if (geometry->flags & BIOSDISK_FLAG_CDROM)
|| ! (geom.flags & BIOSDISK_FLAG_CDROM))