DVD Authoring with 15,000 b/s bitrate

[tygrus2000]

I was surprised to learn the dvd spec has a wide range of allowable bitrates but I was under the assumption that 9800 b/s was the highest you could encode to until I saw in VV4 under the Main Concept encoder that 15,000 b/s was a possible choice.

Has any body rendered at a rate this high before and is it a noticable improvement in quality? Something tells me this would make the final product look so good.

Tygrus

[SLK001]

15,000kbps is okay for the wider MPEG2 spec. The DVD spec is a subset of the MPEG2 spec, which limits the video to 9.8Mbps.

[Gazorgan]

The DVD spec bitrate is based on the speed of the player. Or more Precisely, a 1x DVD Player. You can make one that's higher, but you can't watch it with a setop unit(although some may work).

What are you going to use for a source that needs that high a bitrate? I'm curious. Something in HD maybe, with a 1024x768 resolution perhaps......

[SLK001]

The DVD spec bitrate is based on the speed of the player.

Actually, the speed of the player is based on the DVD spec. Data is read off the player at a constant 26.16Mbps rate, which is decoded to 13.08Mbps. This includes 2Mbps of error correction overhead and 1Mbps of navigation overhead. This leaves a MAXIMUM rate of combined audio, video and substreams of 10.08Mbps.

So, it is NOT possible to encode a DVD with that high of a bit rate and get it to play. What you would have would be a simple MPEG2 file.

No DVD authoring program should even allow you to import this file.