checking dvd quality

[slimpickins]

hi guys, what sort of specifications must my dvd's meet if they are to be considerd good

yes, we all have our different oppinions of what is good but im sure there will be a level of bitrate or something and once its abouve that then its okay

my dvd-r's look fine on a 28 inch crt but im sure once blownn up onto a 42" screen they will change, so please can someone tell me what numbers i should be looking for in a bitrate checker o i know what is good and what is bad


thanks

[guns1inger]

bitrate is important, certainly, but it is only part of the story. High bitrate won't fix poor source material or a low quality encoder. Some commercial discs use high bitrates and still have what I would call average to below average picture quality. Others manage to fit a full movie into a single layer and still look acceptable (although probably not great).

If you try to measure only by bitrate, you will miss the big picture

[slimpickins]

well please tell me how to measure the big picture, granted i have also seen some commercial dvd's look pretty shabby, e.g a clockwork orange, basically pre 80's, so what am i loking for whne trying to check quality only looking at information and not the picture, i have used g-spot to tell me which are 4:3 and which are widescreen but i heard g-spot isnt accurate average but only the header

please help, im sure there is someone out there who knows how to do what im asking


thanks

[thecoalman]

720x480(if your in NTSC land) 6000VBR is usually adeqaute for most material to remain within the safe zone IMO, even overkill some would argue.

check quality only looking at information and not the picture

You can't do that, there's many factors that can affect the quality. Most importantly the process you are using. You can have two videos with the exact same specs from the exact same source with drastic differences. Here's an example:

Video that went from AVI>3000CBR


Video that went from AVI>8000CBR>3000CBR


The final specs on either of those videos would be identical, the source is the same, the result is not.