What causes video pictures to be slanted, and how do I fix it.

[warp4dennis]

The last time that I used Real Player to download and save a video, the entire clip was slanted from top to bottom, and from left to right. RP is using Roxio to take care of the converting and saving process, so I asked them for help. But the person that I made contact with at RP, couldn't tell me what to do to correct this problem. And then I called Roxio for help, but all they seemed to be interested in is selling me some more of their Software, which I already have plenty of.
Does anybody here know what might be causing this, and can tell me how to go about fixing it?:huh:

 

[samuria]

Does it happen with certain formats ie .mov.mp4 or all formats?

 

[davexnet]

Also mod 2 sizes (width) can cause this

 

[warp4dennis]

The file was .mp4. I seldom do this kind of work anymore, so it's a problem trying to finding a converter on the Internet that is reliable enough to do the job. Many claim to that they can do it, but I have found that other S/W is required to finish the job, which naturally costs more money.