XVCD resolution problem, help me please

[LioCraft]

Hi there,
Yesterday I've just started my experiments in de VCD/XVCD world. Some experiments went great, and some other didn’t.
I have a Sony DVP-NS315 DVD player, and it’s great.

Here is the detail of my experiments, all of them were burned to a VCD using Nero disabling the standard compatibility thing:

1.- Movie in 720x352 DivX re-encoded to a 720x480 (letter box for subtitles) : Played Great, but the subs where to low in the screen….I suppose that 480 was too mucho for the player and/or TV
2.- Movie in 640x272 xDivX, frame served in VirtualDub 640x350 (letter box again):
a.- Re-Encoded to standard VCD: Played Great but the image quality wasn’t that great.
b.- Re-Encoded to 640x350 Mpeg-1: The player didn’t have any trouble with this file, except that the image seems to be too wide, I was loosing a range of it in the right side.

Questions:
1.- Does a VCD movie need some fix-ratio (wide/height) in order to fix in the TV?
2.- Is this a problem of the DVD Player or the TV?
3.- Why the movie in 720 fit on the TV screen perfectly but the one in 640 didn’t?

Any help would be much appreciated.

Thx in advance

[puertorican138]

Question #1: VCD's resolution is 352 (Width)x240 (Height).

[puertorican138]

The reason why 720x480 will fit perfectly but 640x352 is becuase 720x480 is a valid resolution the DVD Player can play. 720x480 is the resolution for a DVD. 640x352 is not a valid resolution and your DVD Player doesn't no how to properly resize it for your screen.

Hope That Helps!!!

[LioCraft]

mmm...and overscan?, some says that it is an overscan problem, and others that it is the DVD res....I really don't know how to attack the problem

[Nelson37]

For best results, leave your video at its original size, or downsize, and add borders to arrive at a standard resolution. ANYTHING other than 352x240 or 480, 480x480, or 720x480, is very likely to play with unpredictable results.

b. What you describe as playback result is exactly what "player having trouble with the file" means.

[puertorican138]

For best results, leave your video at its original size, or downsize, and add borders to arrive at a standard resolution. ANYTHING other than 352x240 or 480, 480x480, or 720x480, is very likely to play with unpredictable results.

b. What you describe as playback result is exactly what "player having trouble with the file" means.

Yeah, he's right. Those resolution are standard resolutions that your DVD player could play without any problems.

[puertorican138]

Any resolutions other than:

352x240 (288)
352x480 (576)
480x480 (576)
704x480 (576)
720x480 (576)

will not play properly (Ex. 640x272, will not show up properly on your T.V screen because of your DVD player's inability to play a non-standard resolution correctly).

Hop That Helps!!! :P