Western Digital DVR Expander is pretty much just a hard drive

Western Digital has released its new DVR Expander, which lets you record up to 300 additional hours of standard definition or 60 hours of high definition television programming.

If DVR Expander sounds to you like a fancy name for a 500GB external hard drive, you're right. But this particular model has been designed for and tested with the Scientific Atlanta 8300 PVR, deployed by cable companies across the country.

Basically, the DVR Expander should work with any PVR that has an eSATA port. That should include the Series3 TiVo. Although TiVo hasn't officially enabled the use of the eSATA port on Series3 units, hackers have found it's not too hard to turn it on. We see no reason why the Western Digital hard drive wouldn't work.

The DVR Expander is available now for about $200.