[mythtv-users] Question on recording sizes and DVD burning

John Pilkington J.Pilk at tesco.net
Wed Jan 22 12:03:38 UTC 2014


On 22/01/14 11:54, Henk D. Schoneveld wrote:
>
> On 22 Jan 2014, at 12:35, John Pilkington <J.Pilk at tesco.net> wrote:
>
>> On 22/01/14 10:59, Henk D. Schoneveld wrote:
>>> You can do even better, encode-speed/size-wise, if you use anamorphic settings. The human eye is more sensitive to vertical then horizontal resolution. By using non-square dots, wider, you need less horizontal dots to encode. The original DVD/TV format uses that. 704 dots are displayed at a width of 1024, at least in Europe. I think is the US 720 is displayed at 854. https://trac.handbrake.fr/wiki/AnamorphicGuide
>>> Knowing that this works well, one can change the settings in HandBrake or ffmpeg accordingly.
>>> I encode 1080p stuff to 880x720 which will display at 1280x720 and encoding en size decreases with (1280-880)/1280 = 31.25%
>>>
>>> Henk
>>>
>>
>> Again, this sounds like transcoding for compact archiving.  I think a typical new MythArchive user wants a standard-format DVD for gf/grandchildren to play in a commercial DVD player.
>>
>> I burn DVDs from DVB-T with no transcoding; several channels use 544*576, which isn't officially DVD compatible but I have never had any problems with it.  My main standalone DVD player produces 1080i via HDMI to a 1920*1080 display.  Is it worth trying 880*720 on a DVD?
> If you want to play it on a standard-format DVD of course not, but if on a standard BD player or other media player as Roku/AppleTV etc I would say give it a try and see for your self.
>>

Ok, thanks.  And a correction: the TV identifies the DVD player output 
as 1080p/50 Hz.

>> John P




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