Increase recording capacity

With the Western Digital My Book AV DVR Expander for high-definition TiVo DVRs, you can increase the recording capacity of your TiVo DVR.


The Western Digital My Book AV DVR Expander is available in a 1 TB size. Once the expander is plugged into the eSATA port on your TiVo DVR, it will be "married" to your DVR. The 1 TB expander will add over 140 hours of HD recording space (or over 1200 hours of standard definition recording space).

The DVR Expander can be used with:

  • TiVo BOLT
  • TiVo Roamio (all models)
  • TiVo Premiere (all models)
  • TiVo HD (all models)
  • TiVo Series3

Note: The Western Digital My Book AV DVR Expander cannot be used as a mobile storage device to transport shows from one TiVo DVR to another device. If a DVR Expander is disconnected from the TiVo DVR to which it is married, and formatted by another TiVo DVR, all or most of the recorded content on the original TiVo DVR and all of the content on the DVR Expander will be lost.

Connecting the DVR Expander

In order for you to connect your DVR Expander to your TiVo, you must first have a TiVo Series3, TiVo HD, TiVo Premiere, or TiVo Roamio DVR.

Hide the steps
  1. Unplug the TiVo DVR.
  2. Connect the eSATA cable between the DVR Expander and the TiVo DVR. (Do not use a USB cable to connect to TiVo)
  3. Plug in the DVR Expander. The power LED illuminates.
  4. Wait approximately 15 seconds for the hard drive to warm up.
  5. Plug in the TiVo DVR.
  6. Follow the on-screen instructions.

Note: Some models of the 'My Book AV DVR Expander' from Western Digital include a USB cable in addition to the eSATA cable, but only the eSATA connection is supported for use with the TiVo DVRs. If you have connected a DVR Expander using the USB connection, disconnect the USB cable and follow the steps using the eSATA cable.

Temporarily disconnecting the DVR Expander

Follow these instructions when temporarily disconnecting the DVR Expander (to clean or move your entertainment center, for example).

Show the steps
  1. Unplug the TiVo DVR.
  2. Disconnect the eSATA cable from the DVR Expander. 
  3. Unplug the the DVR Expander.

CAUTION:  Always unplug the power cord from the electrical outlet before disconnecting the AC adapter from the DVR Expander.

Reconnecting the DVR Expander after temporary disconnection

Follow these instructions to reconnect your DVR Expander after temporarily disconnecting it.

Show the steps
  1. Reconnect eSATA cable to the DVR Expander.
  2. Plug in the DVR Expander.
  3. Plug in the TiVo DVR.

CAUTION:  Do not reconnect the power to the TiVo DVR with the DVR Expander disconnected. This will cause you to permanently remove the expander and lose all or most of your recordings.

Permanently removing the DVR Expander

Under normal operating conditions, there is no reason to remove the DVR Expander. Removing the expander does not allow you to play your recordings on a different TiVo DVR. Because each recording is distributed equally between the TiVo DVR's internal drive and the expander, you cannot gain additional storage by using more than one DVR Expander. You should only remove the DVR Expander if you wish to stop using it.

Show the steps
  1. Unplug the TiVo DVR and disconnect the eSATA cable.
  2. Unplug and disconnect the eSATA cable from the DVR Expander.
  3. Plug in the TiVo DVR and follow the on-screen instructions.