Screen resolution and video rsolution

[vcd_user]

I have a PMP which says that "Display: 4.3" 480 x 272 TFT WQVGA, Widescreen, 16m Colors". It also says that it will support "AVI: Resolution up to 1280x720, RM:1280x720, 30 F/S" If I want to make a video that can make full use of the screen. Deos it mean that I can specify up to 1280X720 but not smaller than 480X272 as the resolution in the software that builds the video ? I think I need some basic understanding on the relationship between the screen resolution and the actual video resolution used in encoding the video. Can anyone help ?

[mh2360]

If the resolution of the screen is 480 x 272, then any video with a higher resolution will be downscaled to fit the screen.

If you plan to make videos exclusively for use with this player, then I would encode them at 480x272, anything higher is a waste of storage space.

[jagabo]

Typically, devices scale, up or down, from the source resolution to the display resolution.

[vcd_user]

Thanks,
Is 480x272 considered as HD for a 4.3" device ? I am just wondering what resolution should the device has in order to get a true HD video quality. This is for my education when I buy my next PMP.

[mh2360]

At 4.3 inches 480 x 272 is more than adequate, and done correctly videos should look great.

Not so long ago we were all watching VCDs with a resolution of 352x240 on large screen TVs.

[edDV]

Will look adequate because of viewing distance and angle but is not HD or even DVD resolution.

If your 4.3" display was HD resolution, you would need to view inside 8 inches to see a difference vs SD.