how to prepare Youtube Vids?

[3thman]

I have vids like that ... I want to stream it on youtube with the same DAR and without quality loss

Codec ID : XVID
Bit rate : 920 Kbps
Width : 716 pixels
Height : 382 pixels
Display aspect ratio : 1.874
Frame rate : 25.000 fps
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive

this is a chuck :
http://www.mediafire.com/?bzbmmtgyl92

When i upload it on Youtube I get good quality but with wrong DAR

here is an example:
http://www.youtube.com/watch?v=vG-OZJ9arkk

THANKS

[Baldrick]

Try resize to a standard 16:9(dar 1.777) resolution like 640x360 and then upload.

[MOVIEGEEK]

856x480 is also 16:9 and looks good on YouTube.

[lowellriggsiam]

Here's clip I did using the default wmv settings in Sony Vegas, it seemed to keep it's ar http://www.youtube.com/watch?v=7MXXxZoNiXw

[3thman]

Thanks to all , but I want my vids to be shown with the right DAR.

* resizing to 640x360 or other means stretching the image because DAR is not 4:3 or 16:9 , it is 1.87:1

* Re-cropping means data loss because these vids are cropped before.

=======
I found two primary solutions :

1 - Bad solution ; adding this line in TAGS yttretch=16:9 (the original DAR is not 16:9 but it is near of that)
==> this reduces the quality & when I save it , I get the buggy DAR "4:3" 720x576
as here http://www.youtube.com/watch?v=vG-OZJ9arkk
2 - Youtube encoder causes this matter with (Xvid) codec When I tried (AVC/H264) "YOUTUBE recommendation" the problem is solved but with lower quality & higher size.
as here http://www.youtube.com/watch?v=p7uMOSQXw_w
=======

[aedipuss]

youtube would prefer h264 mp4. start over with the original source and use a higher bitrate if you see quality loss. 4-5 mbps is not unreasonable. with the max filesize now at 1GB per video it's not like you can make it too big.

[3thman]

youtube would prefer h264 mp4. start over with the original source and use a higher bitrate if you see quality loss. 4-5 mbps is not unreasonable. with the max filesize now at 1GB per video it's not like you can make it too big.

Than Q so much , U r right , YOUTUBE reduces the bitrates , so when I increased bitrate , I got the desired quality.