How do I do this?

Neil Wilkes wrote on 11/27/2012, 10:34 AM

I need to make an extremely low bitrate M2V file for DVD, but - and this is the important bit - it cannot be the usual size/bitrate as it will; take up too much space.
The actual onscreen visual is a still image that needs to have an overlay for navigational purposes but the usual way of running this - 2500 or 3000kbps - will give me a file size that is simply far too large.

Is there a way of making this a lot smaller?

Comments

Former user wrote on 11/27/2012, 10:51 AM

You can make the bitrate as low as you need, but you will find anything under the 2500 you mentioned will probably just be a blocky artifact filled mess.

If it is a still, are you putting video on top of it? Why do you need to make a still run so long? If you explain more of how you are going to use it, me or others might give you some alternatives.

Dave T2

Paul Masters wrote on 11/27/2012, 11:28 AM

Please see my reply in post 'I-Frame MPEG-2 - how?'.

I have also tried to render a still to a very low bit rate video to create a small file. To me it is counter intuitive but the lower the bit rate, the worse it looks. One would think that if there was no movement / difference between the 'frames' that the first I frame would be a good image and the rest would be as well during playback, but that does not appear to be the case.

Paul Masters

musicvid10 wrote on 11/27/2012, 12:07 PM

With 720p AVC for instance, you can render a still well below 1,000 Kbps and still retain perfect accuracy. Only the I-frames come in at a higher bitrate.

farss wrote on 11/27/2012, 1:30 PM

I think the way to do this is in the DVD authoring application itself.
DVD menus and overlays store only a single frame and commands determine how long it stays "on the screen".

Bob.