====== ASUS BC-12B1ST DVD Drive ======

  * [[Optical Drive Speeds]]

Had to return mine. :( On some boots it wouldn't register in the BIOS, would show up as an IDE drive, or the kernel would have events loading it. I'm certain that the "e-green" functionality that's designed to save power by spinning down faster and spinning up more slowly is the problem. Scanning some DVDs it'd take seconds to respond.

With DVD in drive:

<code>
  Maximum read  speed:  8310 kB/s (CD  47x, DVD  6x, BD  1x)
  Current read  speed:  8310 kB/s (CD  47x, DVD  6x, BD  1x)
  Maximum write speed:     0 kB/s (CD   0x, DVD  0x, BD  0x)
  Current write speed:     0 kB/s (CD   0x, DVD  0x, BD  0x)
</code>

With Blu-ray in drive:

<code>
  Maximum read  speed: 35968 kB/s (CD 204x, DVD 25x, BD  8x)
  Current read  speed: 26976 kB/s (CD 153x, DVD 19x, BD  6x)
  Maximum write speed:     0 kB/s (CD   0x, DVD  0x, BD  0x)
  Current write speed:     0 kB/s (CD   0x, DVD  0x, BD  0x)
</code>

udevadm info:

<code>
P: /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/host3/target3:0:0/3:0:0:0/block/sr1
N: sr1
S: disk/by-id/usb-ASUS_BC-12B1ST_b_002933008114-0:0
S: disk/by-path/pci-0000:00:14.0-usb-0:2:1.0-scsi-0:0:0:0
E: DEVLINKS=/dev/disk/by-id/usb-ASUS_BC-12B1ST_b_002933008114-0:0 /dev/disk/by-path/pci-0000:00:14.0-usb-0:2:1.0-scsi-0:0:0:0
E: DEVNAME=/dev/sr1
E: DEVPATH=/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/host3/target3:0:0/3:0:0:0/block/sr1
E: DEVTYPE=disk
E: ID_BUS=usb
E: ID_CDROM=1
E: ID_CDROM_BD=1
E: ID_CDROM_CD=1
E: ID_CDROM_CD_R=1
E: ID_CDROM_CD_RW=1
E: ID_CDROM_DVD=1
E: ID_CDROM_DVD_PLUS_R=1
E: ID_CDROM_DVD_PLUS_RW=1
E: ID_CDROM_DVD_PLUS_R_DL=1
E: ID_CDROM_DVD_R=1
E: ID_CDROM_DVD_RAM=1
E: ID_CDROM_DVD_RW=1
E: ID_CDROM_MRW=1
E: ID_CDROM_MRW_W=1
E: ID_FOR_SEAT=block-pci-0000_00_14_0-usb-0_2_1_0-scsi-0_0_0_0
E: ID_INSTANCE=0:0
E: ID_MODEL=BC-12B1ST_b
E: ID_MODEL_ENC=BC-12B1ST\x20\x20\x20b\x20\x20\x20
E: ID_MODEL_ID=de2c
E: ID_PATH=pci-0000:00:14.0-usb-0:2:1.0-scsi-0:0:0:0
E: ID_PATH_TAG=pci-0000_00_14_0-usb-0_2_1_0-scsi-0_0_0_0
E: ID_REVISION=3.01
E: ID_SERIAL=ASUS_BC-12B1ST_b_002933008114-0:0
E: ID_SERIAL_SHORT=002933008114
E: ID_TYPE=cd
E: ID_USB_DRIVER=usb-storage
E: ID_USB_INTERFACES=:080650:
E: ID_USB_INTERFACE_NUM=00
E: ID_VENDOR=ASUS
E: ID_VENDOR_ENC=ASUS\x20\x20\x20\x20
E: ID_VENDOR_ID=1e91
E: MAJOR=11
E: MINOR=1
E: SUBSYSTEM=block
E: SYSTEMD_MOUNT_DEVICE_BOUND=1
E: SYSTEMD_READY=0
E: TAGS=:seat:udev-acl:
E: USEC_INITIALIZED=563306149
</code>