[FFmpeg-user] How to increase the resolution of video?

[Stephen Liu]

Hi all,
I have video captured on V8 tapes in about 1990.  They are low resolution video.  Recently I sent the tape to a profession shop ripping them on DVD.  I have ripped the DVD to computer as .VOB files.  On the whole their quality is not so bad except those video taken in-door then the screen not very clear.

I'm prepared converting them to .mp4 files and simultaneously increasing the resolution to 640x480 or to 1280x760 to check whether their quality can be improved?  The audio is excellent.

Please advise what command line shall I run?  Thanks in advance.

Regards