<p><br>
On Sep 23, 2012 3:12 AM, "Ken Smith" <<a href="mailto:kens@kensnet.org">kens@kensnet.org</a>> wrote:<br>
><br>
> Raymond Wagner wrote:<br>
>><br>
>> On 9/22/2012 09:31, Ken Smith wrote:<br>
>>><br>
>>> Hi, I have previously saved space on some recordings I want to keep by<br>
>>> converting them to mp4.<br>
>><br>
>><br>
>> Be aware that in England, many of your recordings may already be in MP4 (H.264) format, and that you will not save an appreciable amount of space by transcoding. Also, keep track of how much time your CPU is running full out transcoding as opposed to low power idle or standby, as well your own personal time investment, so you can weight it against the price of simply buying more hard drive space.<br>
>><br>
> The SD material from both DVB-T and DVB-S in the UK seems to be mpeg2. All the HD material in the UK appears to be mp4.<br>
></p>
<p>Actually mp4 is a container. H264 is a codec.</p>