how do i get my screen size of the video of 352x288. my screen size is 1920

[jraju]

Hi, it is a old video cd that i want to preserve. I had anyway, removed the dust and it plays fine by using moserbear flash player included in the cd. When I play it, it occupies the full screen, and gives good video and audio when playing. It was dat file with 352x288. I tried any video converter, and it converts the same to mp4 with 1920x1080. But on playing the converted mp4, the screen was half occupied by black bars fill and the video shows small in screen.
I think, the player included in the video cd, upscales the video to my screen and plays fully well..But playing the converted one, occupies only half of it.
I know that there is a process of upscaling to fit your screen. I want to know, how could i upscale this converted video to give the original player upscaling effect.
If i convert to mp4 in its original resolution, then the black bars are bound to occur and the video will play half the screen. is it not.
please say, how could i do . The converted video resolution is 1920x1080, my screen size.

[_Al_]

Is that newly encoded 1920x1080 video, even with those black bars, proportionally correct?

[ProWo]

Copy the dat file to your computer and play it with g.e. VLC player.
You could also post here a mediainfo report (text mode) from this dat file.