2009/5/8 Andrew Herron <totallyma...@gmail.com>

> This is a very popular feature in the Sky+ & SkyHD PVR's from Sky here in
> the UK as it  enables them to offer the ability to rewind 'Live TV' in an
> ad-hoc way (at least to the point where you switched over to the currently
> viewed channel)
> I agree it must put extra wear & stress on the hard drive and yes the
> energy usage must be higher.

There's no need for this stream to reach disk. A 512MB in memory buffer
should be sufficient, and ram is cheap these days.

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