Currently Being ModeratedAug 16, 2011 6:55 AM (in response to Rio_Sevilla)
Not all mp4 videos will work. There are many ways to encode video into a mp4 container. Some won't work and some will. What I'd recommend trying (after backing up) is in iTunes right click on the video that isn't copying to the phone and from the popup menu select the convert to iPhone compatible option. It's not a fast operation, though, but when I had this happen before it always worked.
Currently Being ModeratedAug 16, 2011 7:12 AM (in response to nwcs)
Thanks for the rep but there isn't any convert to iPhone option from the popup menu when I right clicked the videos. I really don't get it. Videos used to sync perfectly fine as long as they were in mp4. x( Thanks though.
Currently Being ModeratedAug 16, 2011 7:19 AM (in response to Rio_Sevilla)
Wish I could remember the right name for it but I'm at work so I can't check it. But go to the Advanced menu while selecting the video and check the convert options. Ahh, found an article that will help: http://support.apple.com/kb/HT1211